The Streaming SQL Database
An open-source relational database that runs SQL queries continuously on streams, incrementally storing results in tables.

I think many of these things have been fixed, but... whoa

Apple's recently open-sourced key-value distributed DB. Supports ACID transactions, and assumes that you'll add layers on top to provide a richer data model that just key-value pairs.

Effie Worldwide's library of finalist and award-winning cases - a collection of Ideas That Work, including summaries, videos of the winning work and hundreds of written case studies on effective marketing communications strategies, ideas and results. The purpose of the case database is to educate about effective marketing communications and to showcase the companies and individuals creating effective work to enhance learning in our industry.

An online database of RISM's series B/III (The Theory of Music): bibliographic information on manuscript sources for music theory from the Carolingian Era up to ca. 1500, maintained by Christian Meyer (Centre national de la recherche scientifique).

Use this database to search the musical theater repertoire by composer, show, voice type, tempo, mood or quality ("charming," "wordy," "bluesy"), etc. and then find links to sheet music and recordings.

FoundationDB gives you the power of ACID transactions in a distributed database.

Music sales/chart rankings from over 74 countries, including all Billboard charts, Offical Chart Company (UK), and streaming statistics from Apple and Spotify. Also includes data on historical film box office and media sales and rankings from Nielsen.