In order to keep track of all your blogs, the best way is to subscribe to their RSS feeds. And to do that, you need an RSS reader. One RSS reader that you can use and that doesn't require you to install any software on your computer is the Google Reader.
All you need to start using Google Reader is a Google account.
From the Quick Tour of Google Reader,
Keep track of your favorite websites
Stay up to date
Google Reader constantly checks your favorite news sites and blogs for new content. Whether a site updates daily or monthly, you can be sure that you won't miss a thing.
Simplify your reading experience
Google Reader shows you all your favorite sites in one convenient place. It's like your inbox, for the web.
Discover new content
Millions of sites publish feeds with their latest updates, and our built in feed search makes it easy to find new content that interests you.
Google Reader includes other features as well, such as reccomending articles to your friends, sharing with just one click and most importantly using Google Reader on any computer. Below is a screenshot from my personalized Google Reader.
I hope you find it useful. :)