I work for a SaaS company that sells software. SourceForge is by far our number one channel for acquiring new customers. We pay for a Plus Package on SourceForge for our business software, so that we are listed in their software directory. They provide way more qualified clicks than other business software directories. We also have a community version (open source) of our product, so we list that in their open source section, and get thousands of downloads per week for free. SourceForge is a godsend when it comes to marketing business software and acquiring new customers.