Here is a list of companies who can help you get data entry jobs at home.

(1) http://www.ourdollars.com/
This company offers data entry, phone transcription, medical coding, business coding, legal transcriptions, document data recording, input data capturing and many othe rhome based data entry jobs. The companies associated with our dollars.com pay once per month!
(2) Freelancer has regular listings for data entry jobs
(3) How can you tell if a data entry from home job opportunity is real or not?
First of all, if someone cheats you, its very hard to take legal action against them if they are not in your state or country.

Meet a data entry company face to face.
(a) Its good to meet people face to face if possible. Scam artists will not be interested in meeting with you personally. If there is no salary information or equipment information on the posting, that is a warning sign. Companies that are serious about hiring you to do real work will find a way to inform you of the qualifications and will want to screen you to see if you are capable.
Fast money is not real in any legal business.
(b) Listings that guarantee you fast money are not to be taken seriously. Data entry is hard work, and doesn't pay that well. Try different "real" companies and see which ones actually give you pay checks that are worth your while!
Don't send money to data entry companies.
(c) Don't send money. If a company wants you to send them money, forget it. Work for companies who want to make sure you are qualified, but intend to have the flow of money pointed towards you, not them, otherwise you will get scammed for sure! Buying kits is a way to make the kit salesman wealthy, and not you!
Check references of data entry businesses.
(d) Check references. If the company is in the U.S.A., check BBB.org which is called the Better Business Bureau. Ask companies for references. The references they give you might not be real, or may not represent the majority of their clients, but its better than nothing. Also, check the company out on google.com to see if anyone has had a bad experience with them.

Does it sound too good to be true?
If it sounds to good to be true, then you are being deserate and not realistic. Nobody is going to offer a free lunch when there is so much cheap labor out there. Work for companies who sound legitimate, and who you can prove are legitimate, otherwise you will be left holding the bag.

In the end, most individuals who work in data entry, work in an actual data entry facility building, or are closely working in conjunction with an actual facility, even if they are working in their home. They are working for a real business doing real work, and not just purchasing a kit, or being scammed by some stranger 1000 miles away!