What are the benefits of using a software RSS reader versus an online source?

Question

I've been using online RSS readers for a long time, but was never able to find a single service that gave me everything I wanted. I've reviewed the answers on this question and figured that I would give a software RSS reader a try.

However, what are the pros or cons of using software instead of webware? I know the obvious RAM and CPU usage, but is it that significant?

Answer 1

One pro is that you can access your feeds offline, read everything you want, and when you go online, It'll (if that program supports it) synchronize. I use Google Reader, I've tried from Thunderbird to FeedDemon, but I prefer GReader, because I read frequently from the original page, not the text that it gives me.