# NoSQL Implementations

## Companies Using NoSQL

- Facebook: Inbox Search (50 TB), Hadoop (30 PB!!!)
- Google: BigTable (too big to measure)
- Yahoo!: Yahoo! Search Webmap (gigundo-huge)
- Twitter: Cassandra, Hbase, FlockDB, Hadoop
- New York Times: NYT R&D Lab on MongoDB
- Digg: Green Badges (3 TB)
- Sourceforge: MongoDB used throughout
- Amazon
- Last.fm

## NoSQL Products

- Apache: Cassandra, CouchDB, Hadoop, Hbase, River . . . .
- Berkeley DB
- BigTable
- eXist
- FlockDB
- Freebase
- memcached
- MongoDB
- Terrastore

Next: MongoDB