Information overload

I need a better way to organise my reading page. I currently have a heap of subscriptions, mostly to things and people I genuinely want to read, but I am seriously lacking in time. I find that if I don't read my flist for a couple of days then, by the weekend, I'm too far behind to catch up. Or I open tabs with the intention of commenting but find that, by the time I read it a week later, the moment has passed to make a useful comment.

So, how do you deal with information overload? Do you filter by topic or by some other secretly genius method?