I change my apps every couple of months, when I see something new that I think might be better. This month I ditched my smelly old boring agrigator (sage - which fits nicely into Firefox, and well I have no real problems with) and replaced it with Bloglines! Why is Bloglines so good. Well its a web based client so now I can check my blog list from anywhere! They also provide you with a Firefox extention that fits in the taskbar, it checks every 30 seconds if there are any changes which is cool.