I have a blog, where I promote SFI opportunities, TripleClicks benefits, ECA opportunity, auctions, games, ECA Products, etc.
I also place free ads and monitor my emails.
I read posts in the forum and the daily stream. I look for news from SFI, and read expert reports and professional training lessons provided by SFI. This might not be a "primary" way to promote SFI, but I take the things I learn and use them with the afore mentioned ways.