A few days ago I discovered a very useful tool called Netvibes. It's like having your personal desktop on the web, you can keep track of all of the blogs or podcasts you are subscribed to, keep track of your emails in your different email accounts, subscribe to newspapers... It's great because you can see everything you are subscribed to with one glance and you decide where you want to put each item on your web page. Check it out:
Netvibes