The best or most useful services are often the most simple. Indeed this is barely even a tool at all.
Instapaper just saves web page links you come across but dont have time to read. It stores a list of them (in chronological order) until you visit the site and have time to click and read them. Once clicked the links get "archived" and removed from your list.
It's amazing how useful such a service is. I tend to read through or come across a lot of blogs or articles during the day (mostly via news.ycombinator.com) and tend to procrastinate at work reading them. Usually I bookmark stuff I cant read and sync it to home using Foxmarks - leading to huge long lists of bookmarks I always lose (or whatever). Instapaper fills the gap with a bookmarklet that lets me shove links into it's memory and return to Hacker News for more. Come the evening I just go back and read up all of the saved websites (bookmarking the useful stuff).
Result: better, shorter bookmarks lists & I get to read all the useful stuff I notice during the day. Thumbs up!
Pros
- There is minimal signup. You just need an email address as an id (and you can set a password if you want)
- Does what is says on the tin: literally
Cons
- No frills (though for me that is a pro!)
- Minimal features