We mark things as answers when they are answers. Anyone's reply can be marked an answer.<p>It's mostly been us answering so far (we're in there all the time to keep everything moving smoothly at launch), but over time other people will come in and offer answers as well.<p>Here's a non-37signls answer, for example:
<a href="http://answers.37signals.com/basecamp/132-printing-sections-of-the-site" rel="nofollow">http://answers.37signals.com/basecamp/132-printing-sections-...</a><p>We expect to see more of these over time. We are also exploring ways to incentivize people to answer each other's question.