Other

BitVPS

VPS and dedicated servers for Bitcoin.

Two-Factor Bitcoin

The only way to do a two-party transaction between untrusted peers (an implementation of BIP38).

Rhymes With Fiat

Rhymes With Fiat is an ongoing crypto-focused webcomic with a soft educational slant.

Fairlay

Fairlay is a prediction market using Bitcoin. You can predict on the news and Bitcoin events or suggest your own events and earn money.

BitTrust

BitTrust provides ratings for Bitcoin merchants and services to let people know which websites they can trust with their money.

Blockstream

Blockstream is a startup focused on advancing Bitcoin by developing sidechain technology.