The reality is that none of those things (except 8 and 11, which have strong offerings already) listed are billion dollar ideas.<p>This is just a reiteration of the current Internet strategy:<p>1. Target a niche.
2. Create a strong base.
3. Grow like mad.
4. Move into other offerings.<p>This is exactly what trees in a dense forest do - they grow up as fast as possible, and then when they're on top they branch out to both absorb more sunlight and prevent competing trees from outgrowing them.<p>So the real message is 'focus, focus, focus, until you get big and then try and do everything in your space before the second-starters outpace you.'<p>I'm not saying this is a bad thing - from an ecological perspective, it is very good for the forest, but not so good for the trees.