Ahh… how often to post, this is a contested topic when it comes to blogging. Some people say once a week, others say you should post a minimum once a day. To me, the most important answer is how much you can realistically do. If you take a look at successful blogs out there, you will find some that fit into every category including only one or two posts a month.
When I started my blog, I planned to post every day. And I kept that schedule up for several months. But then I got to the point where I felt that seven posts a week was a lot and I could not keep myself motivated to write that much. Then I dropped down to Monday to Friday and now I post three times a week. I find three posts a week is great because its enough to cover a topic in three posts but not enough that I get burnt out and have nothing to say. If I have a single topic post, I can throw it in on a weekend of I can leave those open for industry articles that I think people will want to read.
Another part of why I quit posting on weekends is that they tend to be low traffic days. People are busy with their families on the weekends and do not get on the computer. Why not wait and use your best stuff when you know people will see it? Once you are blogging for a bit, you will figure out what is the best schedule for you.