Google Freind Connect.10

Grow traffic to your blog by adding social features to your blog. Google Friend Connect means more people interesting, more deeply with your blog and with one another.

• Enrich your blog. Select interesting social features gadgets from the catalog by Google and OpenSocial developer community.
• Attract more visitors. Your users can invite friends from the social network and contacts list to join and visit your blog.
• There is no program whatsoever. Just copy and paste the code to your blog and Google Friend Connect does the rest.