grep.ro

So there's this guy, Marco Arment, who created instapaper.com. Simple concept: bookmark pages that look interesting, read them later or download to Kindle/iPhone/iPad, all for free. Or buy the "pro" version of the iPhone application if you want to support the site, and get a few bonus features in the app. He's not out to make money; just scratched an itch, but let anyone use the new service, wrapped in a nice user interface.

I'm guessing that by far the biggest cost was the time he invested into this project. There must be some hosting bills, but I'd be surprised if they are significant. In return, he built himself a great reading tool, and earned the gratitude of countless other people.

I'd love to make something like that sometime.