CloudCrowd is similar to Odesk. But it is specialized in minor tasks and is very fast at paying out your money. If you are not sure if the site is a scam, try a simple job and you will see that the earnings are placed on your account in 24 hours! I have not met any site that deals with payments that fast.
Just like with Odesk, you qualify for tasks by doing tests first. You are then offered jobs very much connected with writing, researching, editing.
If you want to try out the site, you can apply here.