Social

http://socialmarketing.blogs.com/
http://blog.social-marketing.com/
https://www.youtube.com/results?search_query=Social+Media+Marketing+

http://ecnmagazine.com/social-media-marketing/

7 C's
http://mattroyse.wordpress.com/2012/08/12/social-media-strategy/
http://rebekahradice.com/create-captivating-social-media-conversations/

http://www.timdavies.org.uk/2008/04/04/7-cs-social-media-participation/