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HackerWeb - A simple and readable Hacker News app
mention - Media monitoring made easy with Mention. Create alerts on your name, brand, competitors and be informed in real-time of any mention on the web and social networks
HackerScroll - Read top articles from HackerNews in a clean, simple and minimal interface without ads or any other distractions.
HNwatcher - Track keywords and users on Hacker News
HNDigest - Top Hacker News stories in your inbox