Social bookmarking is a method for Internet users to share, organize, search, and manage bookmarks of web resources. Unlike file sharing, the resources themselves aren’t shared, merely bookmarks that reference them.
In a social bookmarking system, users save links to web pages that they want to remember and/or share. These bookmarks are usually public, and can be saved privately, shared only with specified people or groups, shared only inside certain networks, or another combination of public and private domains. The allowed people can usually view these bookmarks chronologically, by category or tags, or via a search engine.
1. Simple Share Button Adder (Crunchify’s favorite)
The Simple Share Buttons Adder does exactly what it says on the tin – adds share buttons to all of your posts and pages, simply.
The ShareThis WordPress plugin provides a simple way for users to add your post to many social bookmarking sites, or to send a link to your post via email, AIM, Facebook, Twitter and more.
3. Add to Any Share/Save/Bookmark Button
The world’s best sharing button. Help readers share, save, bookmark, and email your posts and pages usingany service, such as Facebook, Twitter, Google Buzz, Digg, Delicious, and over 100 more social bookmarking and sharing sites. The button comes with AddToAny’s customizable Smart Menu, which places the services visitors use at the top of the menu, based on each visitor’s browsing and usage history.
Other must read:
Make it 1-click easy for your visitors to share your content with their friends.
5) Digg Digg
All-in-One social vote buttons – Digg, Reddit, dDone, Yahoo Buzz, TweetMeme(twitter), fbshare(facebook), Polladium, StumbleUpon, Delicious, Sphinn, Post comments, Google Buzz, Designbump, Designfloat, WebBlend and Blog Engage. There wasn’t any recent update on this Plugin. I’ve noticed little bit page loading time increased with plugin, so moved away from this.