There are plenty of good places to start a free blog, sensual writer is as good as many.
I recommend you also start using
this service to get some traffic and capitalize on your blog/tube/sites from the get go.
Generally the rule on tubes is the longer the clips, the better the traffic but also much greater number of visitors are required to make a sale - hey why should they buy it if they can get it for free right? So most people use 1,3 or 5 min clips tops.