The Website Title is what will show up as the name of your site on Google and at the top of the browser window when someone visits your site. It could be something like "Your Name" or "So-and-So's Art" etc.

You should put your name in the title to help your search engine ranking, but it can be anything you want. It's your website after all.

Access by clicking the Title/Copyright Holder/Keywords link in your control panel