What happened to TAB Books?

Does anyone know what happened to TAB Books? They used to publish thousands of “do it yourself” tech books and now they appear to have disappeared. I can’t find any trace of them or any heir or assign on the web.

They even published a couple of my books back in the day, not that I ever saw a dime past the paltry advances. I’m just surprised they disappeared so thoroughly.

They’re still around. They’re an imprint of McGraw-Hill, and mainly went digital.
Here’s the link: http://www.tabelectronics.com/

I see. Looks like a “closet” imprint; no real resources or staff, just haul the box out of the storage closet occasionally. They don’t even have a web page or functioning domain, just tippy-toe social media presence.

Oh, well.