If you are not familiar with Basecamp and the company behind it (37 Signals), you can check this article on Wired.

Are you looking for Basecamp alternatives?

This page is for those who are already using some kind of project management software (Basecamp in particular) but are looking for an alternative.

Basecamp is a great tool for managing tasks online. It gained a lot of popularity as one of the pioneers of web2 .0 with its "Less is More" philosophy. However, there is no tool to fit everybody, and a lot of users are looking for something more than "less" but still simple to use. With 5pm we are trying to create exactly such a tool.

There are a lot of similarities between 5pm and Basecamp, both being web hosted services. However, there is a significant difference in approach and techniques. Both applications put emphasis on good design and simple interface, though with very different results, which is easy to spot at first glance: