If you're interested in astronomy, try Stellarium! It's a full-featured free planetarium software. It's safe.

This is a harmful typosquatter. (Update 2015: This site is no longer infected, but still has suspicious content.)

You can share and download free sounds here. It's safe.

Fast, safe and customizable. It's absolutely the best of the Web browsers.

It's not paypal.com. It redirects to an ad webpage.