Since you seem to know a lot about pricing, could you give me a few pointers on what one would charge for something like http://historio.us/? Apparently you guys feel that $15 isn't a lot of money, but where I live it's not disposable income...
* you have to find out what the value your service generates is to different groups of customers (an MBA would call them "segments").
* you have to figure out the cost of acquiring and maintaining customers in each segment.
* you price based on the value (if it creates $10/mo apparent value, that's the number with a gravitational pull).
* bust out cleverness to figure out ways to capture money from high-value low-volume segments without scaring away low-value high-volume segments.
I'm close enough to Colin's target market to know that "just stick the server's filesystem in tarsnap and don't even bother taking an inventory of what's on the machine" is worth multiples of S3+80% just in recovered admin productivity.
Can you make it a browser add-on instead of bookmarklet? I don't know about the others, but I find the bookmarks toolbar clumsy and unnecessary and never turn it on. But I have at least a dozen add-ons installed.
Yes, we already have a chrome extension and a firefox extension is in the works. Unfortunately, only opera allows you to place bookmarklets anywhere in the UI. I don't like the toolbar very much either, but you can also add it to your bookmarks menu, it's just a bookmark.