Legitimate Work From Home/Online Data Entry…How Can You Tell?

Over the last year during my job searches I’ve often come across those job ads that say, “Work From Home!” Most of them are start your own business packages. However, recently I came across a website that supposedly supplies you software that provides company names, forms, etc. that you would need to find those jobs. Of course the catch is that the software costs between $50-$200. I know there has to be a better way of finding legitimate online data entry jobs and such. I did read someone’s post a while back touching on the subject of online data entry jobs, and how they are becoming more and more popular. However, I have not had much luck in finding these jobs myself. How do I know what’s legit and what’s not? Is asking me to pay $50-$200 for software that will supposedly provide me the guaranteed opportunity for online data entry jobs legitimate? Or are all of those in that ever growing list under the category for, “too good to be true”?