A few years back (2011?), there used to be great multi-poster service. With it, you'd select a "cardinal" blog-site and duplicate-to blog-sites. You'd write your articles on the "cardinal" site, then the service would see the new post and replicate it out to your duplicate-to sites. At the time, I had Blogger as my cardinal site with Tumblr, WordPress and three or four others as duplicate-tos.
I wasn't so much doing it to ensure visibility to other developers (I assume that few people find my stuff relevant since it often seems I'm writing about corner-cases) but as a way to help myself cope with our corporate content-filters at the time. See, I mostly blog for my own needs — they act as a repository of "lessons learned" that I can re-reference as needed (avoiding the whole "dead links" and "different results to the same query" problem that comes with using Google over time). Problem was, dealing with our corporate web-filter was kinda like whack-a-mole: any given week, a different blogging platform would be black-listed. Having content-dupes meant I could usually find a least one copy that was reachable from work.
Sadly, that formerly free product became a for-fee service. Don't even remember its name, any more, or whether it's still around.
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