Learn HTML @ htmlPlayground
I was thinking that if you are interested in blogging, you should at least know a little bit about HTML. Basically you have to understand how to create the link and image link if you use blog. I know there are a lot of software that can help you to create simple web pages even you don’t familiar in HTML, but I think it is more better if you know the basic of HTML if you want to create web pages or blog.
If you want to know the basic of HTML, there is a site called htmlPlayground which provides you an interface to show the example code and example result of HTML. If you are interested in learning of HTML, just spend some time to explorer it.