I always loose this link after a few months, so I try to spread it as far as I can when I rediscover it, so that it's easier to rediscover next time.
This is a massive collection of productivity applications for DOS. I mostly use these with my Omnibook 300 and my HP 200 LX, and as I do, I lament that neither has seen a viable replacement.
Use the dropdown menu to navigate. Everything is very well cataloged. I wish every website was this well organized.