Couple of things: * Crawl apartment listings and get notified a lot faster than the official notification channels take. * Monitor the inventory/promotions of

Couple of things: * Crawl apartment listings and get notified a lot faster than the official notification channels take. * Monitor the inventory/promotions of some vendors, e.g. for bikes, that are currently out of stock * Get notified when there's an peak of interest in a specific topic on twitter. I use this to monitor my employer, my project, and any stocks I own.