Sudoku website with text-link advertising
Built a Sudoku website that now earns from advertising, mostly sponsored text links, with free signups seeing no ads.
At a glance
Estimated by a classifier that read the source. The bar shows how sure it was.
- Category
- Content and media77% surex
- Earns from
- Ads90% surex
- Startup cost (estimate)
- $100 to $1kLow confidence48% surex
- Time it takes (estimate)
- Hands-off92% surex
- Where
- Online99% surex
- Coding
- Needs coding95% surex
Source
Hacker NewsComment by perlgeek in “Ask HN: Are you working on any side projects that make "small/passive" income?”, March 23, 2011
More content and media ideas
- Content and mediaThe operator buys an expired exact-match domain for a niche, rebuilds it as a site that earns from the niche audience, and adds a niche job board. Upkeep is minimal.Hands-offOnlineThe Koerner Office
- Content and mediaA simple website that helps people learn Excel through exercises. The founder built it with very little effort and grew it as a dead-simple, boring niche site.Hands-offOnlineStarter Story, 2026
- Content and mediaFree chalkboards and whiteboards placed in restaurants and busy venues, which use them for daily specials. Income comes from selling small ad spots along the bottom to local businesses.Online and in personSide Hustle Nation, 2026
- Content and mediaPosting engaging content, much of it screenshots of other people's posts, to a Facebook page enrolled in Facebook's content monetization program. Facebook shares ad revenue with the creator.Under $100A few hours a weekOnlineSide Hustle Nation, 2025
- Content and mediaA group of free sudoku websites that earn steady income from minimal ads.Hands-offOnlineHacker News, 2024
- Content and mediaPublishes personal notes from nonfiction books on a site and earns some money from it.OnlineHacker News, 2024