Software License breakdown

Always wonder what is the difference between the GPL, the Ms-PL, Creative Commons, and the MIT software licenses are?  Over at the Code Project, they have a extremely easy to understand breakdown of software licenses.

• Provides copyright protection
• Can be used in commercial applications
• Bug fixes / extensions must be released to the public domain
• Provides an explicit patent license
• Can be used in closed source applications
• Is a viral licence

In addition, Wikipedia has another great listing of software licenses.