I'm hearing these two terms interchanged quite a bit lately, and am liking it. After glancing at an article in Wired Magazine's April issue about social media advertising, I was reminded that many people mistakenly define the advertising within social media networks as the fulcrum of social media marketing.

An effective tactic? Maybe as much as any banner advertising. The pivot point upon which all other social media efforts rest? Far from it. James Clark had a good social media program post on Capture the Conversation today about the "marinade" needed to address the word of mouth (most effective) side of social media.