Blog is short for Web Log. It is like a diary that you can share with other people. Whatever you want to express you can put out there for people to read. EP here has a blog you can try.
just go to your user name and click you'll get a listing under it and go down to blog click and then just write whatever you feel like writing. It's best to tittle your blog.
Do you usually start things without really knowing what they are? I hope you don't make bombs.
Rambling, at the lowest level.