CoinArbitrage - Crypto Currency Price Monitor in Real time with Alerts and Notification through email, sms, Desktop Notifications Instantly and watch all of your assets and coins in one place with 16 Exchanges, 6500+ Coin (bitcoin, etherum, dogecoin,litecoin,ripple)
BitInfoCharts - Price, reward, difficulty, hashrate, market capitalization, block time, blocks count for all the...
Stampery - Stampery generates legally binding proofs of existence, integrity and ownership.
ICO Watch List - A place for finding new projects and products that are raising funds via initial coin offering.
Coinranking.com - A mobile-friendly list of cryptocurrencies.
Proof of existence - Allows to certify a document ( of any format ?