It is only $69. If you don't find something within a month then cancel and ask for a refund. Heck, if you used it for an entire year and only got one good job the cost is only $828. Do you think a flat rate or percentage of your billable rate would be cheaper?
I am really enjoying Geekli.st! Not only can I keep up on the latest and greatest technologies, but I can follow along with the prime thought leaders of said technologies. Seeing how they integrated Github with Facebook's social graph makes it even more amazing.