StumbleUpon is going through some major changes as a company. It recently went through some restructuring and is now once again owned by its co-founder and former CEO Garrett Camp. The team is now working on a new product from Camp's startup studio Expa called Mix, which sounds like a next-generation StumbleUpon.
The future of StumbleUpon itself remains unclear, but for the time being it's operating as usual as far as the product goes.
Here's what camp said about it in the announcement for Mix: "StumbleUpon.com users will be able to use the site as usual, and will get an early look when Mix.com is ready to test. StumbleUpon will continue to operate as always, as we explore new product ideas within Mix."
My guess is that StumbleUpon will go away once Mix is ready for prime time, but there has been no such announcement, so we'll wait and see.
We don't know much about Mix yet, but it stands to reason that there could be some new traffic opportunities that come along with that too. Stay tuned.
Images via StumbleUpon, YourEscapeFrom9to5