Elgg might be a bit more popular than Ning. We know about 1 link to it since March 2021 and only 1 link to Ning. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I believe this exists since 2005, originally founded by Marc Andreessen and Gina Bianchini: https://ning.com/. - Source: Hacker News / over 1 year ago
Maybe something like ELGG could be a base depending on your skills. I still was unhappy with that and started down a custom route but stagnated due to the time sink. Source: over 1 year ago
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