Hey, newbie here on BHW (and in the IM business itself). I have a pretty stupid question, because I think I know the answer.. but I'd rather make a fool of myself and ask it, instead of losing my rank. My question is: when sites like twitter, facebook etc have posts with a link to your website, does it help your website's rank (in search engines) or does it affect it negatively? Let's say that 3 people over a period of 1 month post different tweet messages with a link to my site. Will this help my rank or sink it? I'm thinking it will be neutral (nofollow links maybe?), but can it have a negatie effect in any way? I just want to make sure. Cheers!