RSS reader account

I looked into both Bloglines and Google Reader and couldn't work out what, if any, the differences were between them. At first I though it might have been the ability of Bloglines to add images, but was able to do so in Google, so that can't be it. I decided to go with Google Feeder becasue of the linking between Google products.
I can't seem to link my Google Feeder account to anything because the URL is generic - it doesn't link to me specifically. I think this is becasue as a feeder account it's not designed to be read by anybody but the account holder. I did note that ability to email items from the account's page though, so maybe this is in lieu of a URL link.

Definition RSS

RSS (Really Simple Syndication is the most accepted definition) is a family of web-feed formats used to publish frequently updated digital content such as news feeds or blogs. A Web feed is a data format used for serving users who frequently update their digital content, which can be syndicated thereby allowing users to subscribe to it.

Its value lies in the fact that by way of software known as 'feed aggregators', users can to subscribe to web feeds. Aggregators reduce the time a user needs to stay online to perform tasks, such as get news or blog updates, that they do on a regular basis. By way of the user's aggregator software the sites the users wants to regularly check on are combined into a "personal newspaper" where all updates are announced. These sites need to have an RSS feed in order for this to happen.

In order for a site to be accessed by RSS feed the language used to write it must be XML.