The Image displays the Icons Present in Blackberry Phones

Icons are everywhere in a website and their primary purpose of guiding and giving out information to visitors is a highly important one. Other than words themselves, these little graphics within a website that tells you how you can move to the next page, cancel a transaction, checkout the cart and the likes, basically the entire navigation. In a general sense, they act as symbols that allow easier and smoother communication between the webpage and the person interacting with it.

Depending on the web context, icons should be designed in a manner that are pleasing to the eyes, and most importantly, communicate what it is suppose to communicate. Here’s a showcase of 40 Free and Useful Icon Sets for your reference. Full list after jump.

Function Icon Set
128 Icons, they are only available in 48×48px. [via wefunction | Download]

Onebit Free Icon Set
A total of 50 icons. These icons are free to use in any kind of project unlimited times .[via Icojoy | Download]

Onebit Free Icon Set 2
Total of 30 icons, 48×48 in PNG format. [via Icojoy | Download]

WP WooThemes Ultimate Icon Set
The free download contains all 79 icons, sized at 256×256 pixels and available in both PNG and GIF formats. [via WooThemes | Download]

SEM Labs Web Blog Icon Pack
48x 48 icons for use on the front and back-end of the site released under the Creative Commons License. [via semlabs | Download]

Bright!
This 148-icon set contains all crisp-shaped icons that are designed for wide use in web applications, multimedia and software.[via iconeden | Download]

Milky
The Milky set contains more than 131 icons primarily colored in green, giving an eye-pleasant look and prominent display on either dark or bright backgrounds. [via iconeden | Download]

Iconza Icons
Collection of free icons that can be colored and reduced in size to your taste. [via Iconza| Download]

Basic Set
42 high quality icons for your web application, software or GUI design. Comes in various sizes of 64×64, 48×48, 32×32 & 16×16. [via prokofusha | Download]

MinIcons [via kyo-tux | Download]

Coquette Icons Set
Free icon set contains 50 high quality, free icons in these sizes: 16×16px, 32×32px, 48×48px, 64×64px and 128×128px and 32-bit transparency PNG file format. [via dryicons | Download]

Coquette Icons Set 2
Improved version of one of DryIcons’ most downloaded and most popular free icons sets. [via dryicons | Download]

Dropline Nuovo [Download]

Developers Icons
105 icons (32×32) for your toolbar or anything. Comes in .png, .ICO, .ICNS, .iContainer. [via Sekkyumu | Download]

Circular Icons A themed collection of 100+ 16×16 icons designed by Ben Gillbank, licensed under the Creative Commons Attribution 2.5 License. [via Pro Theme Design | Download]

Web Application Icons Set
20 icons designed specially for web applications, Free Web Application Icons Set is completely Free for both personal and commercial projects in any way you like. [via Webappers | Download]

Mini and Pixel Icons

If large and silky smooth icons aren’t the style you are looking for, how about simple, mini and pixelated one. Such icons can save significant amount of space for your website. Did we also mention their are light in filesize too?

Twotiny- Two icons setsfor websites and web applications. [Download]

Twotiny Expansion Set [Download]

Icons
A free set of over 250 18×18 pixel icons. Each icon was carefully created one pixel at a time using only whole value hexadecimal shades of grey. [via Paul Armstrong | Download]

Tango Icon Library
The Tango icon library contains a basic set of icons for the most common usage. To make it easier for a developer to find an appropriate icon for their application a number of aids are there to help. [via Tango | Download]

Mini Icons 2
113 10×10 greyscale icons in .gif format. [via brandspankingnew | Download]

Mini Pixel Icons
320 icons (available in various color theme) for general web design such as: blog themes, forums, eCommerce sites, and CMS application. [via Icondock | Download]

Web Social Icons
30 free web social icons, great for your website and blog. [via seanau | Download]

Microformats
These icons can be used to depict various microformats in webpages or on the desktop.

512 Pixel LED Icon Set
Designed for web designers/developers by Marcis Gasuns. [via Led24 | Download]

Iconjoy Free Web Development Icons- These icons are free to use in any kind of project unlimited times.

Set #1 [Download]

Set #4 [Download]

Greyscale
40 greyscale icons which each fit into a 34 x 34 pixel area. [via e-lusion | Download]

FamFamFam Icons
Silk [Download]

Mini
“Mini” is a set of 144 GIF icons available for free use for any purpose. [Download]

Flags
247 icons in GIF and PNG formats representing most countries in the world as small pixel icons. [Download]

Splashy Icons
470 splashy icons. [Download]

Bitcons
Mini-pixel icon set (16×16 pixels) containing 91 121 individual icons for various subjects. [via somerandomdude | Download]

Bullet Madness
A list of 200 bullets, arrows and icons uploaded by stylegala users.

Minimalist Pixel Icon Set
[via nclud | Download]

Fugue
2,225 icons are included in PNG format (16×16 pixel). [via pinvoke | Download]

Sizcons
Comes in 2 different format: 16×16 version and a 12×12 version. [via randomjabber | Download]

Social Media Icon Pack
This icon set consists of 30 (16×16) finely crafted social media icons. They are free to use non-commercially. [via Komodo Media | Download]

Sweetie
2 sets of cute and clear icons to use in your nifty web application, respectively Sweetie BasePack and Sweetie WebCommunication. [via sublink]

Vaga
60, semi-transparent .png icons (16 x 16) ready to use and available for free download. [via tenbytwenty | Download]

Placing a Twitter “follow me” button on your website or blog is certainly one of the easiest way to convert Users into Twitter followers. Designing a beautiful Twitter icons or badges can be challenging for those who know less about designs, but the good news is – there are plenty of nice and high quality Twitter icons and badges available for free.

We attempt to show you another 30 Sets of High Quality Twitter Icons associated with the blue bird.

40 Cute Free Twitter Graphics: Badges, Icons & Buttons
via wefunction
Title says it all, all in transparent .png format.

The Social Bird icon set
via inspiredm
Released by Inspired Magazine, consisted the work of Frank Chimero, Jeffrey Bowman, Mills, Dyna Moe, Alex Mathers, Divya Manian, Matt Joyce and more!

TwitterFun Icons
via graphicleftovers
Collection contains Twitter notebook, Twitter blimp, Twitter lightbulb and Twitter monitor.

Happy Birds
via webdesign.fm
4 happy go lucky birds. Comes in PSD and PNG formats.

2 Cute Twitter Icons
via jeeremie
The zip contains two transparent PNG icons available in resolutions of 128×128 pixels, 256×256 and 512×512. The sources are in AI files (Adobe Illustrator CS3), PSD files and EPS file.

High Res Dark Denim Social Media Icons
via webtreats
108 high resolution icons, and the Twitter are just small parts of it.

Fat Twitters icon pack
via jankoatwarpspeed
Pack consist of two icons (those two sitting on the branch). Both icons come in five sizes: 512×512, 256×256, 128×128, 64×64 and 32×32.

Twitter Bird Icon Set
via productivedreams
6 icons, all in high quality transparent PNG format.

Twitter Eggs
via graphicleftovers
Available in PNG format in two sizes: 256 x 256 px and 128 x 128 px.

Cute Tweeters Icon Set
via Smashing Magazine
Eight icons. Available in 128×128, 256×256 and 512×512 in formats of eps, psd and ai

Twitter Icon
via Diwa Fernandez
High resolution Twitter icon in PNG format.

Elvis, hero, meditation and sufer
via ebiene.de
4 x 126 Pixel PNG, 4 x 256 Pixel PNG, 1 x Preview, 1 x Adobe Illustrator

Twitter stamp icon
via Marco Kuiper
All icons are available in three different sizes: 32×32, 64×64 and 128×128 px, and Twitter icons are just part of it.

Twitter icon
via antonist

Twitter icon
via aleandros
Not exactly blue, but fairly high resolution and can color can be tweaked easily.

Twitter Icon
via marek.sotak
Twitter lblue bird with big fluffy wings.

Twitter Block Icons
via Fast Icons
Package consist of: Blue Bird, Blue Bird Follow, Blue Whale, Orange Whale.

Twitter Birds
via InaliBlast
Twitter blue bird in high resolution PNG format.

Twitter bird vector icon set
via Mau Russo
Comes in ai svg and png.

Twitter bird logo icon illustration
via Matt Hamm

Twitter / fail bird illustration
via ohmgee
A freelance illustration about twitter going mainstream.

Tweetenstein
via biggreenape

Tweet Tweet Cute Tweet
via thedesignsuperhero
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Free Twitter Birds
via Luc Latulippe
Twenty-four Twitter icons in six different style, each in 4 different colours.

Moby Twitter Bird
via Mau Russo
Available in .ai and png.

Lovely Twitter Icons
via Catmy

Tweetbird Free Twitter Icon
via sneh.roy
The icon comes in 512×512, 256×256, 128×128, 64×64 and 32×32 pixel sizes.

Tweeta Free Twitter Bird Icon Set
via littleboxofideas
Tweeta in her glamor queen avatar or in her cute and sexy twitter cheerleader avatar. Available in 64px, 128px, 256px and 512pix in png format.

Helvetwitca Vector Typographic Twitter
via Monika Halim
Helvetwitca is created using HelveticaNeue LT 45 Light for it’s body, HelveticaNeue for the foot and HelveticaNeue LT 95 Black for the smiling eye and mouth.

Tweeties
via Chris Wallace
Include four different .png image sets (32×32, 48×48, and 80×80) and original ai format.

Here are tones of free crystal clear icons for you, released by Everaldo Coelho under GNU Lesser General Public License. Icons are organized by categories of Actions, Applications, Devices, File Systems, KDM and MIME-Types. They come in transparency .PNG format with size as large as 128×128. A free icon page web and UI designers would not want to miss.

Visit Crystal Clear Icons

WordPress fans, here is something you might not want to miss. Snap2object brings you 30 free WordPress Icons. They are in vector format, therefore scaleable without affecting its quality.

The download file however is in PDF format, personally I would prefer open source formats like .AI or .PSD.

Download Vector WordPress Icons

via roxzen

Freeiconsdownload.com as self-explanatory as it’s name, has a massive archive of free icons you will find handy for your GUI or web design. Whether you are looking for icons for applications, cartoons, computers, people, sports, etc, freeiconsdownload have something in their categories. If you are just checking out, be sure to check out some of the most popular and most downloaded Icons.

 Thanks mattdoggs