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How Lanyrd does Geo
We use MapBox maps around the site
We suggest events based
  on the user’s Twitter
 and LinkedIn contacts,
   and their interests
Each event has a page showing who is speaking and
        attending, the schedule and more
Speakers get detailed profile pages
Users can track topics in
specific geographical regions
The site is built around a place hierarchy
So you can see everything in a specific city,
         or everything in England
Or view events for a topic in a place
Our microformats provide
rich site snippets on Google
We provide GeoRSS feeds,
which can be fed in to Google Maps
Our hierarchical place database
is built on top of Yahoo! Geo Planet
We run off our own copy of the GeoPlanet database,
         which Yahoo! no longer provide...
But it has been mirrored by the Internet Archive
You can explore GeoPlanet using Yahoo!’s YQL API
treebeard is an excellent library for
dealing with trees in a SQL database
Our search feature is built on top of Solr...
We support search within an area by indexing
   the full place hierarchy for each event
Events have a primary venue, so we can
 plot them as a single point on a map
We encourage people to attach existing
 venues first to help avoid duplicates
How Lanyrd does Geo
Lanyrd has a foursquare app,
which provides event information
 when you check in to the venue
We have a tool to help match
our venues to foursquare venues
Foursquare have an API specifically for
          matching venues
The apps platform is very powerful,
and extremely easy to integrate with

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How Lanyrd does Geo