A look at which social media sites do and don’t use nofollow tags on profile links such as Linkedin, Seesmic, Furl and Technorati and questioning why some social networks place nofollow on profile links.
I can see why nofollow is used on comments, but, your social network profile is yours, you are the editor, so a link to your own site shouldn’t have nofollow on it.
Some social media sites don’t add the nofollow tag, LinkedIn is probably the best and most under utilised. Instead of acepting the default My Company text for your link chose ‘other’ this allows you to enter the anchor text for the link.
Obviously if this gets abused I’m sure they will add nofollow, but for now, link away…