Thanks to another Vi Hart video, this time I’ve learned all about flexagons. They are very fun to make; kind of like a cross between a Möbius strip and an origami fortune teller.

If this, then that. Use simple conditional statements to automate internet-related tasks. Quite a cool idea, but I like to keep my online self sparse and localized; imagine having to maintain all that crap?

For some other useful webtools:

[via Lifehacker]

Visit their website for a video demonstration.

(website design subject to change)

Google Correlate is a new Google Labs product. You can view strong correlations to a given query over time or by state. More usefully, you can input your own data set (like a drawn curve) to compare against.