1. Category

Bitcoin Links

Libra

Accounting, Tax and Reporting for Digital Currencies
http://libratax.com/

ZapChain

Answer questions about Bitcoin and follow experts and friends to see their answers.
http://www.zapchain.com/

Twitacoin

Twitacoin is a service to let you send and receive bitcoin over twitter.
http://twitacoin.com/

Gliph

Secure text messaging app with mobile Bitcoin payments.
https://gli.ph/

eGifter

Send free and paid Gift Cards to your friends.
https://www.egifter.com/bitcoin/

snapCard

Buy things on the Internet using Bitcoin.
https://www.snapcard.io

Bitcoin Foundation

Bitcoin Foundation standardizes, protects and promotes the use of Bitcoin cryptographic money for the benefit of users worldwide.
https://bitcoinfoundation.org/

Blockstream

Blockstream is a startup focused on advancing Bitcoin by developing sidechain technology.
http://www.blockstream.com/

CampBX

CampBX Bitcoin Trading Platform - Buy and Sell Bitcoins Instantly
https://campbx.com/

Gyft

Shop with Bitcoin: buy Gyft mobile gift cards to the best brands and earn 3% Points back! Buy cards to Target, GameStop, Sears, and more.
http://www.gyft.com/bitcoin/

Bitfinex

A trading platform for bitcoin, a digital currency, with advanced features such as margin trading, bitcoin exchange, lending market.
https://www.bitfinex.com/