Hacker News Stack is a chrome extension for Hacker News that hides the links you read so that you can focus on the unread news.
Startuphack is a community driven website where users curate the best articles, tools and resources for startups and share them with each other, furthermore everyone can vote on which links are the very best and these links appear on the frontpage helping you save time by filtering through the noise.
Hekla for Hacker News is an iOS client for Hacker News. Fast and customizable, it is inspired by the Apollo client for Reddit.
Hacker News Rankings for story/show/ask update once daily
HN Notify ensures you never miss a response to your comments on Hacker News again.