For some reason, I didn't have this bookmarked. Now I do. "We investigate how to organize a large collection of geotagged photos, working with a dataset of about 35 million images collected from Flickr." "We illustrate using these techniques to organize a large photo collection, while also revealing various interesting properties about popular cities and landmarks at a global scale."

A 27 page PDF by Max Roberts studying how - and how not - to design a diagram of a railway system. Given the "London Tubemap" that's been doing the rounds, tl;dr types should skip to page 14: "The arbitrary breaking of the single-angle rule introduces an disorder into the design with no payback." It also contains some of Beck & Roberts' alternatives, such as the attractive 60 degree version on p12.

'Electronic commerce, we eventually figured out, does not take the form of “shopping malls” you “walk” through. “Magazines” and “catalogues” do not have discrete pages you flip (complete with sound effects) and dog-ear. “Web sites” do not look like magazine layouts, complete with multicolumn text and callouts.' An interesting post on moving things to the web.

PDF containing a list of caveats for the data the Guardian has published. "The usage information is based on ticket sales in the financial year 2002/03 and covers all National Rail stations. It does not include those stations that are owned by TfL. ... The ticketing system does not record certain journeys made using TfL bought travelcards, TfL Freedom Passes, staff travel passes. ... Care should be taken when using the usage figures for stations within Travelcard zones. Where possible, journeys in such areas are allocated to a particular such based on modelled assumptions."

Richard Rutter on the state of the art in web font specification.

A PDF thesis (full title: "Automatic Layout Of Metro Maps Using Multicriteria Optimisation") on using Java and graph theory to lay out rail networks using Beck-esque metro map principles. According to the research, the automatic maps were preferable to geographic and published ones. No London or NY (ie really big) networks, though.

A paper by Claire Monk on Monkey Dust, the obscure (but popular in 2lmc) animated sketch show on BBC Three, from The Journal of British Cinema and Television, concentrating on how it's London-centric. The full-article PDF seems to be free.

How to use the ReportLab PDF generation library with Google App Engine. Summary: it works out of the box, except it tries to make a file, so stop it doing that and you're good to go.

"If you've ever needed to produce PDF documents before, in Ruby or another language, you probably know how much it can suck. Prawn takes the pain out of generating beautiful printable documents" If Tom and mattb recommend this, I think I can trust it to work.

"Turn your favorite feeds into a personal magazine" Produces a PDF, but somewhat escapes the one-look-fits-all paradigm of feed reading applications.

PDFs for Apple's current product line, outlining what the environmental impact of their production and use is.

The Google Chrome comic that kicked it all off, available on Google Book Search (and as a downloadable PDF).

Having spent part of this morning poking around in the guts of a wiki trying to figure out its format, I find that Apple have actually published a PDF with that info in. It doesn't mention, let alone document, the SQLite revision.db file, though.

Danny O'Brien's notes from OpenTech. I suspect this is a boiling down of some of his posts from earlier this year, but I really should read it to make sure. (Warning: PDF)

"MagCloud enables you to publish your own magazines. All you have to do is upload a PDF and we'll take care of the rest" Nice idea, but of course it's US only for now (at least, as far as buying a magazine goes).

Free PDFs of stories by Ken Macleod and Greg Egan, who, handily, are two of the people whose work I particularly enjoy. Hurrah!

Not the most detailed of user guides, but then, it's nice to see a manual less than a hundred pages long, with large clear pictures rather than dense type and denser diagrams. (PDF.)

Another PDF on AppleScript, this time a look at the lower-level (the OSA) that underlies both AppleScript and the new crop of scripting interfaces (ruby-osa, Scripting Bridge, etc). Originally from 1993, but unpublished.

A PDF on the history of AppleScript, including tantalising descriptions of the never-released Professional Dialect, amongst other things. (I referred to this back in September 2006, but keep needing to find it.)

(Warning PDF) Slightly breathless Alstom PR material about their new AGV, a 360km/h train for the French high speed network. Sounds fabulous though.

A lovely little PDF booklet. I might have to print bits of it out. Reversed, so they don't use up all the toner.

Revived from last December, because TfL can't keep a website URL constant for more than a few months at a time, seemingly. Still lovely, still want a printed copy.

"Yahoo has reached a deal to start running advertisements in Adobe's popular PDF document-reading format." "The advertisements will not appear if the PDF document is printed." Raises more questions than it answers. Will Preview show the ads?

A page describing a linked PDF about Euston station, on the occasion of its 1960s redevelopment. One to file under "failed futures", but they certainly make the food court look a lot nicer than it is now.

The presentation that inspired the husk.org redesign.

(warning: PDF) sadly not textual, but an exquisite example of Islington pretension as a 12 year old talks sense and two idiots in authority talk nonsense about chocolate.

The whole thing, in PDF format. Key recommendations are on pp6-9.

subtitled "Transport challenges for a growning city". Apparently Crossrail and the rebuilding of the Tube are vital. Who'd have guessed?

I wish I could buy this as a book. It looks lovely. I like the arrows on page 22 particularly.

Taking photos of people in a public place is probably neither an infringement of privacy nor harassment, but international sales rights may be harmed without a model release. Apparently.

Proposed 2016 Tube map. Also includes trams and some overground service. As used by the BBC, with alterations, on its story about the tube map being a design icon, despite it looking awful compared to the current map. (PDF)

The entire text of the Avoiding Dangerous Climate Change book that's been on the front page of BBC News today.