Show HN: I collected 70k online communities – semantic search to find your niche https://ift.tt/sB4VyKu

Show HN: I collected 70k online communities – semantic search to find your niche I built a social listening agent (yes, like everyone and their grandma). along the way though I realized one of the most useful parts was just finding the right communities. so I started saving them and now i have ~70k. then I added semantic search so you can find communities by meaning. the dataset grows as people use the platform. how it works - free accounts: semantic search the already saved 70k communities - paid accounts: search realtime first (keyword searches from the sources) and then run semantic search over the updated communities dataset I also put together an agent that given a website finds relevant communities for it. example: https://ift.tt/4YJuleB right now it covers: - subreddits - x communities - linkedin groups - facebook groups - discord servers - mastodon servers next, I'd love to figure out a way to add slack workspaces but I haven't figured out a good way besides a crawler that goes around to find slack invite links? if you know a reliable source, I’m all ears any suggestions for what other sources I should add? https://ift.tt/bp1LMSA August 10, 2025 at 11:36PM

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Show HN: Guish – A GUI for constructing and executing Unix pipelines https://ift.tt/HrXz5ub

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Twin Peaks for All: Survey Results

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Twin Peaks for All: Survey Results By Benjamin Barnett Last month, the SFMTA and San Francisco Recreation and Parks Department released a survey seeking public feedback regarding  five proposed roadway options for Twin Peaks Boulevard . San Franciscans responded to the survey, ranked support for each alternative and shared opinions about how the different options met their needs.  The Twin Peaks for All survey was open for almost three weeks and received more than 1,700 responses. This number reflects the high level of interest for this San Francisco park and its future access.   Survey Background Conditions on Twin Peaks Boulevard between Portola Drive and Barnett Avenue before COVID street closures.   The Twin Peaks Boulevard gates were closed early in the pandemic to reduce crowding at the lookout point parking lot. The gates were closed on the north, at Burnett Avenue, and the south, at Portola Drive. Since then, Twin Peaks Park use by hikers, joggers and peopl...
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History in Motion: New Photos from the 1960s to 1980s Now Online

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History in Motion: New Photos from the 1960s to 1980s Now Online By Jeremy Menzies We’ve been hard at work in the SFMTA Photo Archive and recently uploaded two large collections of photos from the early 1960s to the 1980s to our website. These photos, both color and black and white, give a glimpse into the day-to-day operations of Muni and the streets of San Francisco. Here’s a selection of shots from this brand-new batch of photos, many of which have not been seen outside the Photo Archive in years.  This shot shows a typical evening rush hour scene from the mid-1970s taken at Market and Powell Streets.  The color photos from this era are all part of a collection that was most likely used for presentations, studies and as general “stock” type photos of San Francisco, streets and Muni facilities and operations. Subjects include project documentation, copies of maps and charts, street...
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