Sitecore Widgets

The following widgets can be used in sitecore.

1. Facebook2. AddThis3. Twitter4. ShareThis5. Digg6. Delicious7. StumbleUpon8. Newsvine9. Reddit10. LinkedIn11. Pinterest12. TweetMeme13. Price of Gas14. ClockLink15. iBegin Weather Widget16. Skype Button17. MyPageRank18. CheckPageRank19. Blinkxlt20. Wikiseed21. Facebook Like Badge22. Facebook Profile Badge23. Facebook Photo Badge24. Facebook Like Box25. YouTube26. Mini Chat(3)27. Currency Converter(3)28. Calendar(3)29. Exchange Rates(3)30. Pop up Box(3)31. My IP(3)32. Countdown flash widgets (4)33. Old Clock (5)34. User Agent Informer (5)35. Map orange ,yellow(5)36. Calculator Green(5)37. Global Counter (5)38. Navigation Button (5)39. Online Photoshop (5)

Sources:

http://w3techs.com/technologies/segmentation/cm-sitecore/social_widget

http://mashable.com/2007/09/06/widgets-2/

3- http://widget24.com/widget/mini-chat

4- http://www.xorbin.com/

5- http://100widgets.com