I hate to do it but as there was such a lot of positive comment to the newsletter written for our sister company ECRM I just have to mention these two articles about Social Media Marketing.
Firstly, the one describing the basics about what it is etc. Find Social Media Marketing 1 here.
Secondly, the one that gives some "how to" stuff. Find Social Media Marketing 2 here.
Now I know there's nothing startlingly new here and anyone who has used Social Media probably knows all this stuff, but quite a few people getting the newsletter seemed to like the fact that it brings quite a lot together in one place and is useful as a reminder to experts and a starting point for tyros.