Slate has an interesting article on how we read text online. If you've never read anything about this interesting topic (or even if you have) this is a good primer.

How we read online.

It's interesting that he mentions that Jakob Neilson (a web usability guru who I sometimes agree with) doesn't like blogging. I hate the name "blogging" but I've found that it is a viable information distribution mechanism and is probably here to stay (but can we agree on another name for it...please).