[JangoSteve]

On http://www.ratemystudentrental.com, it was Watch Lists. If there was no available rental property that matched what you searched for, you could just hit a button to "create Watch List" and RMSR would notify you when a rental that met your criteria was added to the site or became available. Everyone thought this sounded like a "great idea" for the week or so it took me to build. Now 2 years later, exactly 2 people have ever used it.

Why did it go unused (I wouldn't say it totally failed)? The biggest reason is probably because no one wants to use your site as much as you want them to. If they couldn't find what they wanted on my site right away, why would they stick around when they could just go look elsewhere?

That's why I ended up building the "Around the Web" feature, where if a rental couldn't be found on RMSR, it will aggregate and map properties from other sites (around the web). This feature was mildly more successful.