Gary Gale

There's a phrase in Latin that goes errare humanum est which roughly translates as everyone makes mistakes. This is true of so many things and maps are no exception. However much we try to make today's maps as authentic, up to date and accurate as we can, the occasional mistake slips in; it's more a case of when rather than if.

But if you find a mistake in a map, is it really a mistake or it is a deliberate error, placed there as a copyright trap to provide evidence of the origin of a copied map? This is a vague area at best. Some map makers are up front about this.

In November 2008 I was still working for Yahoo and a fledgling meetup event for people interested in maps, location, geo and mobile started up in London. It was, and still is, called GeoMob. I was at GeoMob's very first event, talking about Yahoo's Fire Eagle location brokering platform. Four years later and it was great to go back, see GeoMob still flourishing despite a brief hiatus in 2010, and meet up with a lot of old friends as well as meet some new ones.

And what an evening it was. Truly a veritable feast of maps. David Overton spoke about SplashMaps, his Kickstarter funded project to produce lightweight printable fabric maps for outdoors.

I didn't think it was possible to map happiness but apparently it is and George MacKerron showed how with the aptly entitled Mappiness project.

Nothing on the interwebs is forever. Services start up and either become successful, get acquired or shut down. If they shut down they usually end up in TechCrunch's deadpool. The same applies for APIs and when they finally go offline, they usually end up in the Programmable Web deadpool.

At around 1.30 PM London time yesterday, the Yahoo! Maps API got added to the Programmable Web deadpool for good. Despite the announcement I wrote about last year that it was being shutdown on September 13, 2011, up until yesterday the API was very much alive and well and still serving up map tiles, markers and polylines via JavaScript.

If any industry sector is uniquely poised to benefit from the triumvirate of social, local and mobile, it's the classified listings industry. The last time I spoke about whether do embrace SoLoMo or just embrace social, local and mobile I cautioned against the tick in the box approach and against adopting new technologies just because you're exhorted to.

But at first glance, a business running classified listings does seem to put all the right ticks in all the right boxes.

Firstly local. Classifieds are inherently local, offering a way for local businesses and individuals to offer ... stuff ... to other local people. Implementing a local strategy needs your mainstay offering to have a strong geolocation quotient and what could be more local or more geolocation than addresses and postal codes?

Then there's mobile. Most classifieds businesses have either fully or partially transitioned from print to online and if you already have an online presence, you're more than half way to having a mobile online presence.

Finally there's social. Again, there's a strong affinity with classifieds. Nothing spreads faster than word of mouth reputation and harnessing the power of social media to allow people to say "hey, I just found this really cool stuff" is a compelling case for social.

So when the International Classified Media Association, the ICMA, asked me to talk about SoLoMo at their Social, Local, Mobile: Classified Media Strategies conference in Instanbul last week it was an ideal opportunity to see whether my preconceptions to be skeptical about SoLoMo were borne out in practise or whether I'd just overdone the cynicism a bit too much.

Back in July, I wrote about Big (Location) Data vs. My (Location) Data, which was the theme for a talk I gave at the AGI Northern Conference. The TL;DR premise behind the talk was that the location trail we generate on today's interweb is part of our own digital history and that there's a very one sided relationship between the people who generate this digital stuff and the organisations that aim to make money out of our digital stuff.

Once I'd given that talk, done the usual blog write up and posted it, I considered the topic done and dusted and I moved onto the next theme. But as it turns out, the topic was neither done, nor dusted.

Firstly Eric van Rees from Geoinformatics magazine mailed me to say he'd liked the write up and would I consider crunching down 60 odd slides and 3000 odd words into a 750 word maximum column for the next issue of the magazine.

Ah ... art. Art is a contentious area for discussion. One person's work of art is another person's random spots of paint on a canvas. As Rudyard Kipling once put it, "it's clever, but is it art?".

Even artists can't seem to agree on this topic. Compare and contrast Picasso's comment that "everything you can imagine is real" with Warhol's contrarian stance that "an artist is somebody who produces things that people don't need to have".

Now add maps into the equation and you have a debate where people probably won't always agree. So it was with a conversation on Twitter between myself, Steve Chilton, chair of the Society of Cartographers and psychogeographer Graham Hooper. We were talking about a map like this one ...