I use the following Adblock rules:

||fbcdn.com/*$domain=~facebook.com
||fbcdn.net/*$domain=~facebook.com
||facebook.com/*$domain=~facebook.com
||facebook.net/*$domain=~facebook.com

I never see Facebook content on any site other than Facebook, and their social plugin can't track me.

Is bacon close enough for you?

I've been using the Wi-Spy from Metageek at work. I hadn't heard of the Ubiquity AirView. It looks like it's pretty competitive with the Wi-Spy -- apparently it uses the same chip, and the software has similar features. It'd be great if the AirView software had device signatures, but it appears that they're pretty receptive to feature requests through their forums. I'll definitely have to keep that product in mind as a recommendation to others. Thanks!

Metageek has a few products in their Wi-Spy USB Spectrum Analyzer family. The cheapest one (the 2.4i) is $99, and the next model up (2.4x) is $199. It analyzes the entire 2.4GHz spectrum using your laptop and lets you see potential sources of interference. The 2.4x version allows you to use their more advanced software which also has device signatures -- you can overlay signal patterns of various types of devices (microwave, cordless phone, wireless baby monitors, etc.) on top of the signal density graph in order to identify what's causing the interference. I use the DBx version (2.4 + 5GHz) at work, and it's great for helping to find problems.

I don't own one, so I can't say for sure, but it looks like it uses the standard 1/8" headset plug. Which means that, in theory, it should work with any device that has that type of jack. Like a Droid, for example. Hmm... I've got a standard iPod touch headset sitting around. I should test it and see if it works on my Droid. Would you like me to report back with the results?

I think you need to start using your 'h' key more...

As a kid, I received a kit that had pieces to build marble roller coasters as a Christmas gift. It was great for learning basic physics principles, and I was able to make my own designs and figure out why they did or didn't work. Mine was a Spacewarp kit (which are apparently still available at ThinkGeek), but a Google search shows that some other kits are Skyrail and Rollerscape.

Exactly. Everyone knows it should've been "that there house and that there school."