This little plugin for Community Builder displays a 'Share this profile' button on every profile page. This button when clicked, opens a javascript popup with bookmark links for major social networks and a little form to share the page via email also.

It supports:
aim, bebo, blinklist, blogmarks, bookmark, delicious, digg, diigo, facebook, faves, furl, google, linkedin, live, myspace, newsvine, stumbleupon, technorati, twine, twitter, xanga, ybookmarks

It can send to multiple address emails (separated by coma) and gives the opportunity to add an optional personal message.

This CB plugin is free, GPL and based on the CB1.2 framework.