Finding specific information about Windows Phone 7 and 8, or useful development tools can be a tedious task sometimes. Luckily Mark Chamberlain that works at Microsoft has put together a PDF document that has a lot of links to both Microsoft and Non-Microsoft learning, samples and tools sites.
Download it at https://skydrive.live.com/view.aspx?resid=2A4264AF2A3E511!503&app=WordPdf&wdo=2&authkey=!AHXYGDMBTo7VYOQ