Each Friday, we share a handful of links we found interesting, provocative, funny — or just plain cool. We call it In Our Feeds. Have a good weekend!

Happy (almost) Hanukkah! The first thing that caught our eye this week (thanks, Nadia) was this video — a Rube Goldberg Machine for Hanukkah.  The idea of any Rube Goldberg machine is to build an incredibly complicated, over-engineered process for doing a simple task — and I’d say these folks succeeded! (Kids, don’t try this at home.) It’s totally worth the watch.

Switching from one holiday tradition to another: have you seen all the beautiful book Christmas trees making their way across the Internet? Here’s MediaBistro with a roundup of some of the best ones. Do you plan on creating one? Be sure to tweet us a pic if you do!

Also, in a break from tradition, I’m going to point you to a link from our own Scholastic family. It’s just too cute not to share. Our friends at Scholastic UK have created an online advent calendar for the holiday season! It’s filled with ideas and deals for book-lovers in the UK.

Ok, let’s leave the holidays alone for a moment. The big news in the book world today was the change the New York Times has made to its children’s bestsellers list. They’ve created separate middle grade and YA lists! Check out the details here.

Also cool: New York has challenged its citizens to reinvent the pay phone. There are 11,000 of them here (whoa), and some ideas being bandied about include portable libraries, tech charging stations, and…slot machines?

Hope you all have a great weekend!