Plug in question

I am looking for a plug in or plug ins that can do the following.
1) Add a google, RSS and other feeds button in my site so that users can click on the buttons and subscribe.
2) Add delicious, furl etc. buttons on the site.

Can you please suggest me the names of the plugins. I searched the plugin directory list and was unable to find any that can do these.

Thanks for the help in advance.