Question i will use to evaluate:
Is is free?
What can it do concerning security?
What is it good for?

1. animoto.com
This is a pretty cool site. Here, you upload pictures or get pictures off of a site and make them into a movie. You can add text and music too. It could be useful for school but it could get distracting. It is totally private and it is not possible to search people's videos and access them. So it is perfectly safe. Also, it is free but you can get a "pro" version that you do have to pay for.

2. bablewith.me
This site is a chat site but the only way someone can chat with you is if you give them the URL to your chat room. I think this is pretty safe and private but it's hard to know if someone can find you or not. It doesn't give you much information about security. I dont think this could help with anything school related because it is just a chat site. It is free but I personally don't think this site is very useful.

3. Scribblemap
Scribble map is a website that has a map and you can draw, create shapes, and other fun options. It's not very useful for school except for studying maybe. It is free and safe.