The “next” bookmarklet feature of Google Reader is an interesting one. You never need visit your feed aggregator with it. Just hit it everytime you want to read the latest unread item in your RSS reading list and it will take you straight to the referenced page.
I think it can be improved though. For a lot of my reading list it is pretty useless. I click next, have to wait for the page to load, see if I like the page and then hit next again. Hundreds of times on a busy day. Part of the point of an aggregator is letting you quickly skim over hundreds of items looking for interesting ones to read further on.
But some feeds I know I want to read each item. e.g. a Flickr photo stream or a GMail feed. So why not let me specify a folder that the next feature works off of exclusively. Or let me create a custom next bookmarklet attached to a couple of feeds, or to a tag.
