Which one would you register when historybooks.com is not available? history-books.com historybooks.net historybooks.org The keywords "history books is just an example; my real keywords are different.
dont use hypes (-) they look unprofessional and annoying. I would say take historybooks.net or .org, really doesnt matter that much. Just take .net
Thank you guys!! You deserve rep for that. I've spent hours thinking about this and had to go to bed really really late, but in the end, it was without a decision. I guess that I will take .net then.
"-" <SEO helps page serps. Specially when your searching google tends not to look at the complete word and split them up, usually with dashes, google looks at the urls as seperate words help your page serps