1. Category

Bitcoin Links

BTC Vault

A Linux distribution designed to securely handle bitcoin wallets. BTC Vault is based on Slax and thus contains a full Linux installation including the KDE desktop environment and the Firefox webbrowser. Also, BTC Vault includes the Electrum bitcoin client and the MultiBit bitcoin client that you can use to manage your coins.
http://dswd.github.io/btcvault/

Airbitz Bitcoin Wallet

A secure, encrypted, and backed up Bitcoin wallet with advanced features such as Bluetooth and NFC fund transfers.
https://airbitz.co/bitcoin-wallet/

Bitnet

Bitnet provides a digital commerce platform designed to enable enterprise-scale merchants to accept bitcoin payments.
https://www.bitnet.io/

Bitcoin on reddit

/r/bitcoin is a subreddit devoted to new information and discussion about Bitcoin and its ecosystem.
http://www.reddit.com/r/Bitcoin/

Bitcoin Charts

Bitcoincharts provides financial and technical data related to the Bitcoin network.
http://bitcoincharts.com/

CoinGecko

CoinGecko is an independent cryptocurrency data aggregator with over 6,000 different cryptoassets tracked across more than 400 exchanges worldwide.
https://www.coingecko.com/

Block inspector / API

Documentation for the Block inspector blockchain and transaction API.
http://blockr.io/documentation/api

ICBIT

Bitcoin Derivatives Market and Exchange
https://icbit.se/

Bitcoin Hat Club

Bitcoin Hat Club is a Crypto Clothing retailer with ethnically made and custom stitched bitcoin hats. Free shipping world wide.
https://www.bitcoinhatclub.com

BitCredits.io

A system that allows you to be your own payment processor. Useful for shopping cart processing and media content monetization.
http://bitcredits.io/

Vircurex

Exchange platform for numerous virtual currencies, including Bitcoins, Namecoins and Litecoins.
https://vircurex.com/

BTCfeed

A news site reporting on Bitcoin and other Cryptocurrencies. Our mission is to bring you the latest news in the crypto world!
http://www.btcfeed.net/