Wow, lots of bookmark news! Just when you thought it was safe to go back into the water.
I’m more interested in A9 since they’ve obviously put a lot of thought into this problem. The real advantage to A9 is the personalization, which is built on Amazon’s cookies. By using the reach of Amazon’s customer lists A9 gets over the burden of requiring users to register, and makes it much easier to get started. On the other hand, I’m currently logged-in to someone else’s account. If you’re “Askclint-at-yahoo.com” you may want your cookie back. Good to see you’re interested in motorcycles and buffalo soldiers.