I am...

 
... CTO of Causata, Inc.
... Founder (at large) of Electric Cloud
... owner of extravalent (where you can license polymail)
... a member of the Virus Bulletin and MailChannels advisory boards
... creator of geekatlas.com, jeaig, l8tr.org, twi.bz and The Equationater
... author of The Geek Atlas

Latest Free Software Versions Free Software versions via RSS

The following are the latest versions of my software (clicking the software name takes you to its home page; clicking the version takes you directly to the download):

 
POPFile v1.1.1 (26 September 2009)
GNU Make Standard Library v1.0.11 (21 May 2008)
shimmer v0.1.0 (7 January 2008)
GNU Make Debugger v1.0.2 (5 April 2006)
quepasa v0.0.1 (13 May 2004)
tumbler v0.2.0 (28 October 2004)

Archived Content

Content that is still available on line, but that is no longer maintained.

 
The Spammers' Compendium (The Spammers' Compendium is now being maintained here)
Anti-spam Tool League Table

Activity Monitor

Number of new items on the web site for the last 3 months.

 12345678910111213141516
January 2010                                                 
December 2009                                   
September 2009                     

You are here

qrcode

 

Publications

The Geek Atlas

With this unique traveler's guide, you'll learn about 128 destinations around the world where discoveries in science, mathematics, or technology occurred or is happening now. Travel to Munich to see the world's largest science museum, watch Foucault's pendulum swinging in Paris, ponder a descendant of Newton's apple tree at Trinity College, Cambridge, and more. Each site in The Geek Atlas focuses on discoveries or inventions, and includes information about the people and the science behind them.

GNU Make Unleashed

230 pages of GNU Make from basics to advanced. Covering topics not covered in other GNU Make books such as: eliminating recursive make, doing arithmetic, Makefile debugging techniques and more.

Everything you wanted to know about making real Makefiles.

What's New Feed of everything on www.jgc.org

January 2010

 
23rd: Price drop on GNU Make Unleashed
23rd: A not very illuminating reply from the Met Office
22nd: Update list of my GNU Make articles
19th: Stay classy, SoftwareFX, stay classy
15th: Met Office has confirmed that it's ok to use the extra six stations
14th: Mendelian Randomization: getting genes to run randomized trials for you
13th: Utter crap reporting from The Daily Telegraph
11th: CNN.com jumps the shark by writing a story about a forum containing 129 people
11th: Six additional stations for the Met Office land surface climate station record
10th: Blog Greatest Hits 2009
9th: Simplifying my OLPC XO-1 Temperature Sensor
8th: How I got 50,000 page views by simply being me
7th: Reply from the Met Office regarding the 'bug' I thought I had found
6th: The Ikea Lillabo Processing code
5th: More fun with toys: the Ikea LILLABO Train Set
5th: What ever were Southern Railway thinking?

December 2009

 
27th: Toy decoding: vtech Push and Ride Alphabet Train
23rd: Phew! Got the limited coverage error sorted out
22nd: And now for a bug in my code
22nd: There's a hole in my bucket, dear Liza, dear Liza
22nd: The Met Office source code
22nd: Update to my program to analyze the Met Office data
21st: Climate change skeptics / deniers pay better
21st: The bipolar world
21st: The full respone from the Met Office

September 2009

 
26th: POPFile v1.1.1 released
11th: The real Turing test: learning to say sorry (New Scientist article)
Copyright (c) 1999-2010 John Graham-Cumming