Subscriptions are a way to read all of your favorite blogs in one location through a RSS (Really Simply Syndication or Rich Site Summary) feed.
To subscribe to a blog or RSS feed, all you need is a RSS reader and the web address of the blog you want keep an eye on. Simply download and install (or use a web based) RSS reader and import the web addresses then you’ll have all the feeds you need in one place.
There isn’t one right or wrong RSS reader to use. You can find readers in the web browsers you use (such as Firefox or Sarfari) and there are plenty of readers on websites like FeedBurner and RSSReader. You can also download and install readers from BlogExpress, Pheeder or NetNewsWire. It’s all about finding one that fits you.