I need to trademark my informational blog/forum's name, I do sell advertising spots and I provide information. What class would this go under? I do not have a logo to trademark so I would like to just trademark my name, I was reading through the publications on how to file but I am just a little bit confused. Since I do not have a logo mark do I need one? I didn't think I did but what do I upload? A screenshot of the website? I know no one else has my name so that's not an issue. I'm just worried. Also can I register the name with a PO box? Thanks!