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Outmap: a collaborative geodata platform I couldn't release.

When I left Elgg in 2009, I immediately started working on Outmap, a social geodata platform that you could use with any web browser. It never saw the light of day.

Outmap allowed you to collaboratively create map layers, either privately in a group, or in public. Here's two use cases that illustrate what you could do with it:

  • Crowdsoucing useful free wifi hotspots Back in 2009, finding free wifi that worked well was a mission. Suddenly, you weren't alone: you could set up an Outmap space, and tell it to watch a hashtag, for example . Users could then tweet with an address with that hashtag, or add geo-information to the tweet itself. Outmap would also watch Flickr for that tag, and check for location information either in the Flickr metadata, or in the EXIF data in the photo itself. The data then could be mapped, or simply displayed in a list based on your current location.
  • Gathering (or crowdsourcing) scientific data Users could add fields with types. For example, if you were doing wildlife counts, you could take your GPS-equipped smartphone into the field, and as long as it had a web browser that supported the Javascript Geolocation API, that would be all you'd need to record a result. Your Outmap space would tie your numeric recordings of wildlife data to the location where you recorded them. And because it was all social, and tied to individual user accounts, you could examine (or even remove) recordings made by particular individuals for full accountability.

It was based on data tied to individual location points, but further developments would have allowed you to group points into areas, in order to better support some scientific applications. And again, it was all web-based used existing web standards, all social, and (like Elgg) had per-item access permissions.

Outmap couldn't be released for reasons I won't go into here, and were unrelated to the mechanisms of the platform (but were related to the fallout from my decision to leave Elgg). Let it suffice to say, it was out of my hands. I abandoned work on it in 2010, and moved on to work on latakoo.

Geolocation has evolved since 2009, and I think we all now understand that the web is something that we can access from anywhere, and that pages can know about your geographic context. Some other use cases were covered by Google Maps and (particularly) Findery, which is building up a world of memories, found objects and resources on a shared map. Geoloqi, whose founders I really like and respect, supercharges the kinds of use cases Outmap supported (as well as many others). Meanwhile, there are (and were) professional GIS platforms that are extremely powerful and used for many scientific and industrial applications.

I still think there's a place for this kind of functionality in an enterprise social platform. Luckily, I'm now in a position to work on that. Watch this space.

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#indieweb checkins; trying to decide the best approach

Map readersI've been self-publishing my photos and status updates for less than a week, but I already wouldn't do it another way. Idno lets me post easily from my phone or laptop, and the updates show up on the sites I'm connected to. Right now, that means Twitter and Facebook, but sites like Flickr and LinkedIn are coming. (This is all available as open source code, by the way.)

Technical aside: when I post something new, it gets an Activity Streams object type and verb. Status updates are notes, blog posts are articles, and photos are images. Plugins then listen for when new, public content is created with those object types (and, right now, the "post" verb) , and syncs them to third-party sites as appropriate. That way someone else could write a better status update plugin than mine, and nobody would have to rewrite the plugins that synchronize content.

The other silo that I use all the time is Foursquare. Theoretically, taking the user's location isn't hard - did I mention I'd written a book on Javascript Geolocation? - but in reality, this is harder than just grabbing the user's current latitude and longitude and saving it to an Activity Streams place object. Foursquare maintains an extensive database of venues, that's so good that a bunch of third party services use it as well. I don't really want to have to duplicate that.

There are alternatives: OpenStreetMap has a downloadable free software database of locations. The downside is that you need to extract points of interest yourself - and the database, perhaps predictably, is over 28 gigabytes. That's far too much data for most individual sites to be handling themselves. It's certainly not something I'd like to deal with on my personal server.

For me, the perfect use case is this: I click "check in" in idno, the browser grabs my location, I'm presented with a list of nearby points of interest and I select one. The content is saved locally and then synchronized to location-centric services like Foursquare and Facebook Places.

Now, I could use Foursquare's database to populate that list of locations, but somehow that feels unclean. The purpose of me self-hosting is to own my own data, and using that database would make me dependent on Foursquare's service. Also, the flip-side of that also makes me uncomfortable: if my purpose is to put less value into Foursquare's service instead of my own site, I probably shouldn't be using the database they put so much investment into.

I'm not sure anyone else is syndicating their location to sites like Foursquare from their own sites, but if they are, I'd love to hear from them. Until then, I'm considering writing the simplest possible shim: a geolocation plugin that takes my physical location and lets me save a "hint" along with it, that will act as a way to gently nudge the third party synchronization plugins to pick the best venue. The hint wouldn't be publicly displayed, but for example, I could type "amendment" when checking into one of my favorite brewpubs in San Francisco, and that'd be enough for me to be checked into 21st Amendment on Foursquare.

Speaking of which, time to head over the bay and grab a pint ... Sadly, I won't be checking in just yet.

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