After being fed up with most of the other share and follow link systems I decided to build my own. The issues as I saw it was

1. Links often went via javascript to a 3rd party like AddThis
2. No control over if things are in a new window or in the same one
3. pagerank give away
4. javascript needed to use the systems on screen from AddThis and others
5. limited display setup
6. Only share links and no follow links
7. all or nothing approach from the majors, all pages or posts or nothing
8. No widget control, no theme tags, no shortcode

• Bookmark on Delicious
• Digg this
• Recommend on Facebook
• Share via MySpace
• Share on Orkut
• Share on Reddit
• Share with Stumblers
• Tweet this
• Follow this posts comments

So those were the bits that were missing, so I created a system that dealt with all of those issues and more.  We now have widgetized sharing and following, shortcode availabity, multi-size icons (16, 24, 32, 48, 60 px), follow tab in either the top/bottom/left/right side of the screen, funky text replacement option for follow bar.

Basically it’s got most things going….. and is currently being re-developed with more functions and features for version 2.

take a good look at the share and follow plugin for wordpress