Annie Diamond is aiming at: Building a great portfolio of 2 tier Affiliate Programs around great products that work and the majority of people not only need to use but are the best in their genre. All that are showing here, fit that criteria. Some are just fantastic viral Social Media Tools!
Why 2 Tier? For Leverage! To paraphrase John Paul Getty, why would you want 100% of your own efforts, when you can have lots of 1%s from lots of other peoples efforts!