Solutions creating new needs
You fill one need, and the solution creates another. With Straw, I can effortlessly follow a far larger number of blogs than I could without it — at the moment, I'm subscribed to 34 feeds which are easily read through every day (or many times a day.)
But it's not easy to cope with the information load. Now I need more tools to help me with that. One thing I notice is that after I've read through all the blogs in the morning, I have a lot of trouble remembering what was where. I remember there was something interesting somewhere, but finding it can be a pain.
So next up, functionality-wise, will probably be search functionality (free text search, with time limits) and possibly something like bookmarks. Nice to know there's no shortage of stuff to work on.