Social Media is part of linkbuilding?

Social Media Presence is a huge part of SEO and link building. Facebook likes and Twitter Retweets affect your rankings. This has been discussed over and over again and confirmed by google.

Social is the new SEO. Links from these sites are safe, powerful, and effective, plus traffic potential which again contributes to your SEO endeavors...

Ohh and if you guys really think that google doesn't keep track and count ALL links including "nofollow" you're crazy. Want proof? Do a Comment/Wiki?Bookmark blast to a site you have in Webmaster Tools. Ping them, wait a few days. Most of those are nofollow... now check webmaster tools. What's this? Links showing up with nofollow tag. Go to the site, yep nofollow on all outbound links, how can this be?

Because all links are Followed! nofollow will not get you page rank, but its still a link from an external domain. How much authority do you think a link from Wikipedia gets your site... maybe it wont boost your PR, it might not even directly help you in the SERPS, but as part of an overall SEO Campaign, I definitely want it. How about contextual nofollow links surrounded by tons of keyword rich niche related content. Think those don't work?