[AffiliateSeeking]

They are all good in their own little ways, that's why they are listed. How good they will be for your affiliate program though depends on what you need. If you go to each site on that list then you will be able to see what features they offer and if they have everything you want, then I guess that will be your choice. Also some of them are managed and hosted for you and then there is one or two where you just purchase the script and pay a one of fee and then upload it to your own server.

Which one will be best for you, I'm not sure, but they are some of the top and most commonly used affiliate software on the web.

Also, I don't quite get what you mean by your post when you say you want to get links in emails from directories. Does that mean you will have this affiliate program, and directory owners will then join it and add their affiliate link to their emails that they send out when they approve new user submissions or something along them lines?