http://blog.discountasp.net/team-foundation-server-vs-visual-studio-online/ What's more important to your development team, reliability and stability, or always being on the bleeding edge of the development tools you use? Calvin lays out the differences between Visual Studio Online and DiscountASP.NET's TFS service in his latest blog post. If you remember the "Googlighting" video that Microsoft made (and even if you don't), you'll want to read this.
