Merlin and Subscribing to Feeds

I am still confused about whether I should be blogging about some of the 23 things in Blogger or Bloglines - but I will put this here. I have had a bit of trouble subscribing to some feeds - they have a button that says "Subscribe now" but when you do that, the feed seems to go into some file called "Create in Feeds". Does this just live on your computer? It seems to indicate that it will be updated. I have continued to subscribe by copying