Up through lesson 12 of SLA's 23Things

Finished up through lesson 12. The RSS and aggregators are extremely useful. I already use iGoogle and have a Bloglines account, but haven't used it much. I will definitely us Bloglines more and iGoogle less. Google Reader looks good, too. My question is why use Bloglines and Google Reader. I don't want to have to check multiple sites for my RSS feeds. That defeats the purpose of an aggregator. I will probably stick with Bloglines, since I haven't started using Google Reader.