Hello, i'm new in blogging and i have a simple question. I'm using a wordpress domain name that is the same as a ".com" one... should there be any copyright issue or something? The one at ".com" it's porn and mine not at all, the only common topic is that there are videos... Thanks!
Well, it would be a potential trademark issue; not copyright. But without knowing more about the sites, no one can really even begin to answer that. Trademark has a lot to do with whether or not the two sites are similar in any way (such as offering the same kinds of information, or similar enough that it can be confusing). You should look into trademark issues at www.uspto.gov (if you're in the US).