DeepPeep is a search engine specialized in Web forms. The current beta version currently tracks 45,000 forms across 7 domains.
DeepPeep helps you discover the entry points to content in Deep Web (aka Hidden Web) sites, including online databases and Web services.
Discover, new and old music, connect with other music lovers
Contribute, to the largest and most accurate music database
Buy & Sell, music in the world's biggest and best music marketplace
Appolicious is the place to discover and share the latest and best iPhone, iPod Touch, iPad, and Android apps through social recommendations as well as reviews from users and our editorial team -- ten new app articles per day with two video reviews. Find, share, and review apps in categories such as Games, Education, and Travel, or browse user-created lists of apps for anything.
movies.io is a movie search engine and collection database. It's the perfect spot for movie lovers who are looking to discover new movies and keep track of those they've always wanted to watch.
Plexus Engine is an app and data platform that discovers emerging topical information. You can read more about it on CEO Marshall Kirkpatrick's personal blog.
The primary aim of DOAB is to increase discoverability of Open Access books. Academic publishers are invited to provide metadata of their Open Access books to DOAB. Metadata will be harvestable in order to maximize dissemination, visibility and impact. Aggregators can integrate the records in their commercial services and libraries can integrate the directory into their online catalogues, helping scholars and students to discover the books.
Xyologic is the most comprehensive, interesting way to discover mobile apps from all over the world. Xyologic is built to show you the mobile apps and games that are out there and to give you inspiring recommendations based on what you are looking for.
"Instant RSS Search is a Google powered feed engine to help you discover RSS feeds around your favorite topics. Try one of these sample search queries:"