Twitter has quickly become one of the most popular social networking sites. With so much bloggers are putting some twitter icons to their blogs just to get more followers, I have collected some of the best twitter icons free to download I’ve found online.

Adiumy Twitter
Amazing Twitter Icon
Blue Bird Twitter Icon Pack
Cool Twitter Design by Antonist
Create a Twitter Style Bird Mascot
Cute Tweeters Icon Set
Free Fat Twitters icon pack
Free twitter buttons (Includes Animated GIFs)
Free Twitter Graphics
Free Twitter Icon by ThePoet
Girly Twitter Icons
Happy Birds
High Resolution Twitter Bird Icons.
IconTexto Webdev Social Bookmark
It’s Twitter Time! Free vector icon set
Kweet Twitter Bird Icon
Lisa’s twitter bird
Mad Scientist Twitter Icon
Practika: A Free Icon Set
Soccer Twitter
Steampunk Twitter
The Blue Bird
Tweet Birds by Jossotdesign
Tweet Tweet Cute Tweet
Tweeta Free Twitter Bird Icon Set
Tweetenstein
Tweeties – A Free Twitter Icon
Twitter Bird
Twitter Bird Icon
Twitter Bird Icons & Illustration
Twitter Bird logo icon illustration
Twitter Bird Vector Icon Set
Twitter Birdy Icon
Twitter Block Icons
Twitter by MiloMark
Twitter Dock Icons
Twitter Icon
Twitter Icon BIRRRDFON
Twitter Icon for Girls
Twitter Icons PSD
Twitter Icons with Attitude
Twitter Social Icons
TwitterFun Icons

I have listed the top social news / bookmarking sites where designers and developers can submit or find great resources, tutorials and latest design news.

Cypherbox
Delicious
Design JoJo
Design:Related
DesignBump
DesignFloat
DesignMoo
Dev Snippets
Developers Niche
Digg
DZone
Faqpal
favSHARE.net
Graphic Design Links
Inspiredn
Joyoge
Mister Wong
Mixx
Pixel Groovy
Reddit
Script & Style
Sharebrain
Stumbleupon
The Web Blend
Tip’d
Twittley
Undrln
Webmaster Clip
WPscoop
zaBox

The ShareThisPost Wordpress plugin another tool to provide your readers to share your post to many bookmarking sites like digg, twitter, delicious, technorati, stumbleupon, reddit and cypherbox. Just simply activate the plugin and it will automatically adds the bookmarking options below your post.

Installation:

1. Unzip the files
2. Upload sharethispost folder (it contains sharethispost.php and images folder) to the `/wp-content/plugins/` directory
3. Activate the plugin through the ‘Plugins’ menu in WordPress

Live Demo

FolderIcons is free, a folder style social media icon set. This package contain icons for cypherbox, blinklist, blogger, delicious, digg, facebook, mixx, reddit, rss, stumbleupon, technoratti, twitter, wordpress and youtube.