answer:I consider myself a power-RSS user (I subscribe to about 100 feeds that I read daily) and I use Google Reader. One of the best features of Google Reader is that you can view all your feeds different feeds as one big stream. It supports keyboard shortcuts, which are pretty handy, and offline mode with Google Gears. My other favorite feature is Trends, which shows you which feeds you read the most, making it easier to decide which feeds to unsubscribe from.