Sorry for the delay.. Goto your community> Edit Profile> Change the community type to moderated - approval by moderator required to join Then scroll down, you will see a check box in community feature settings to allow HTML posts in forums
I agree with DIgital, after post your link in twitter, some people just come and go after visit your website once.
Hi, Most of all social network sites are useful to bring traffic but for that we have to follow the rules for particular sites. Just want to suggest that in any social site,we have to build one active profile related to our site or blog topics,we have topic related friends,groups in our profile.