RSS and newsfeeds are useful because they put updated information for frequently used websites in one place. Unfortunately, too many RSS subscriptions could very easily lead to information overload.
I used google reader since I already had an account. One of the features of google reader is to automatically subscribe to blogs followed in the linked blogger account.
I remember seeing the RSS subscription icon on different websites but I never really paid much attention to it. I guess I have used the RSS feed that comes automatically with gmail to look at
101 cookbooks so I have used RSS without knowing it.
I think it may be a little too easy to subscribe to different feeds and then have to spend all day trying to follow the feeds. On a fun note, I discovered I could subscribe to one of my favorite comics, Pearls Before Swine, through RSS. The comic from
01/15/09 is even library related.
Libraries could use RSS to promote events at the library with something like a What's Happening At My Library type feed. Books and other items could be promoted through a feed of recommendations by staff.
I only added feeds by searching in google reader. When I tried to add a feed from a website like the NY Times, it said it was going to add something to the internet explorer on the computer I was using. Since we use shared computers here, I didn't think that was a good idea so I searched google reader and subscribed through it.
Library related feeds I subscribed to was YALSA at
http://yalsa.ala.org/blog/, NY Times book section, NY Times book review, NY Times bestsellers, and Powell's Books Review a Day.