WordPress Theme Search - What WordPress Theme Is That?
Roivenue - A marketing intelligence suite built to maximize marketing ROI through data-driven marketing attribution and data integration.
Blocksy - A lightningfast, innovative and supercharged WordPress theme
DropUnited - Chrome extension removes United from your flight search
LyrWP - WordPress themes / plugins / services curated.
CloudSight - Image recognition API; send an HTTP request with an image, get a description of contents.