I've been having a hard time upvoting with StemGeeks.net . Is the tribal interface still the preferred mechanism for interfacing with the tribe?

There have been some issues in the last 24 hours or so with Hive Engine, I am working on trying to get things back in order.

You can't vote on TribalDex, so that's not an alternatie, you can however use Hive.blog and PeakD and look for STEM, Science, Technology tagged posts.