Talk Blogging

I have never been great at writing. I volunteered to read books and review them for my library's website -- I have a book read, but now comes the hardest part: writing my thoughts up. Anyone have any suggestions?

Actually all you have to do is to talk into a tape recorder about the book and then transcribe it onto the computer.

Or...just write it down exactly how you are thinking about it.

You wrote quite a lot in your question, no spelling mistakes, good punctuation, and well worded. I think you are selling yourself short by saying you have never been good at writing. Just do it and you will see how it will just flow out of you. You wouldn't have volunteered if you hadn't thought that you could do it.