Every day, we compile a list with the most interesting tech stories published over the last 24 hours.

This is shaping up to be a very busy week in the tech world (and with Facebook’s F8 conference tomorrow, things aren’t likely to slow down anytime soon). Today’s list is dominated by the U.S. Senate’s anti-trust hearing into Google’s practices. Other stories in our round-up today include a look at how Facebook’s users are reacting the latest updates, an essay about open hardware and a profile of Sean Parker’s that includes a look at his next venture.

To read these stories (which we curate with the help of Pearltress), just click on any headline in the embed below that sounds interesting. An overlay will then pop up and allow you to read the story and navigate to all the other ones as well.

Catching Up (9/21) in Best / Frederic Lardinois (fredericl)