Two Free Tacos Day: this will make my $50 gas purchase yesterday really only $49! Thanks Jack!

Feedbooks: if’n I ever get one of them Kindle thingies, this’d be a might useful site.

How Experts Fail: an interesting free book about the cognitive problems of expertise. {via}

Discover Magazine‘s Archive: they’ve opened up their complete archives, right back to 1992. How nice! {via}

LibriVox: I’ve written about them before, but they deserve another mention since their catalog has grown so dramatically. {via}

LoudLit: public domain books and public domain audio. Can’t beat the price!

National Pancake Day: free short stack all day today at IHOP! {via}

Animal Recordings: approximately 80,000 recordings (audio or video) of animal sounds. Free.

Shhh Cards: print some of these on card stock and use so you don’t have to interrupt noisy cell phone users. That’s the theory anyway. Practice is probably more like, “Hold on a second, Reggie, I’ve got to start whaling on this asshole who just handed me a card telling me to shut up.” {via}

The Bumper B3ta Book of Sick Jokes: they’re certainly sick and there’s a free PDF version available. {via}

Weight Watchers Diet: free through their US patent. {via}

Alien Plant Working Group 2007 Calendar: not my thing, but it might make for a nice calendar. {via}

Programming Texts/Tutorials: awesome list of free references organized by subject matter.

Amazon Free MP3 Downloads: I was not aware of that. {via}

Scary Halloween Sounds: for all your haunted house needs.

Golden Book of Chemistry Experiments Scan: this book has been banned, like so many useful chemistry sets, because kids can learn things from it. Its copyright wasn’t renewed when it should have been so it has fallen into the public domain. The torrent link in that entry appears to be wonky so here’s a non-Torrent local mirror.

[UPDATE (9/13/2007): Removed mirrored file. It appears to be in the public domain but not rightfully so.]

Free Movies Fallen Out of Copyright: thems free for the watching.

Stanford CS Education Library: ooo, me likes the free.

Free Online Books Directory: I’ve been meaning to blog this but it’s been blogcrushed for a bit.

Hotel Core Essex: new nerdcore hiphop “CD” from Futuristic Sex Robotz. If you’ve got an aversion to rampant swearing, this probably isn’t for you. {via}

Learn Out Loud: great selection of free audio and video material. Oh, and there’s ones you can pay for as well.

1911 Encyclopedia: 1911 version of the Encyclopedia Britannica, one of the most authoritative editions ever published.

Charles Darwin Bookmarks and Stickers: make your own.

Google Earth: I was playing around with this this morning and it is super awesome. Much, much better than Google Maps satellite view. And it’s free! I’m so glad they made it free. {via}

[UPDATE (7/22/2005): Go Ogle Earth highlights the most interesting uses of Google Earth.]

Teenager’s Guide to the Real World: 26 chapters (of 46) available online for free. Looks like a good book.

78 RPM Jukebox: hundreds of free mp3s from 1900 to 1930. Everyone’s linking it, so I guess I should too.

Flashcard Exchange: huge library of flashcards that you can print.

Essential Fonts for Designers: 300 free fonts. And good ones, at that.

World Wind: Google Maps satellite on your desktop. Free Windows software from NASA.

Science Toy Maker: make some inexpensive toys that illustrate scientific principles for your young-uns.

TradePub: free, one-year subscriptions to trade publications like Diesel Progress and Clean Rooms. Hey, it’s good for when there’s nothing good on TV. {via}

USGS Photos, 1872-1991: all public domain since they’re from the federal government. {via}

Essential Fonts for Designers: all free, all TrueType. {via}

Sweepstakes Today: somebody’s got to win.

T-Shirt Undies: fight Victoria! {via}

Beer Logos in EPS: suitable for printing of any kind.

Dinctype is offering a boatload of free fonts for Mac and Windows. Bill likee free.

The Founders’ Constitution: 3200 pages of constitutional goodness with commentary and supporting documents. Mmmmm, liberty.