One of those topics was Entrecards! This is a way for writers of blogs to promote their blog on other peoples blogs, for free.
Once I signed up, I was given a virtual business card. I visit other blogs and say "hi - I have been here", by dropping my card in the Entrecard box. Each time I do that I get points that will allow me to place a link to my blog on theirs.
You too can be a student of these webinars that are less than an hour. There are no assignments or time consuming homework. There is no better bargain on the internet