Hackaday.com comes to mind. That's a blog with those tinkering things. Hackaday.io is a big base where people store their schematics and worklog, present their inventions and tinkering as they happen.
It's also owned by Siemens via Supplyframe. That means its content is controlled to a certain degree. Sort of like the way Vice is controlled by its owners. In that way it could function as controlled opposition. Be careful what you submit too.
I wonder if it'd be possible to create a Hackaday-type site with HN content. hackernewsbooks.com >> hackernewshacks.com
