The site is very easy to navigate. McAfee Clinic Virus protection and PC maintenance tools all in one place for a very reasonable price. It's a great way to keep your PC running smoothly and virus clean. Critical Path - formerly DocSpace Formerly DocSpace, probably one of the oldest document storing, sharing, transmitting sites. The other aspects make it very good.
Support is extremely responsive, professional, and helpful.
The looks of this site make you think perhaps the kids should use it. It also has backing by ZDNet. Seems like a good thing to me. Used under License.