Maybe we as should design a little machine readable snippet that can optionally be added to the end of posts. I'd suggest json as it's easy to read/write and is popular. e.g

...post... {type: ["intern"], languages: ["ruby", "scala"], frameworks: ["rails", "lift"], location: {city: "vancouver", region: "bc", country: "canada"}}

Simple schema, all optional keys: { type: ["intern"|"remote"|"h1b"|"fulltime"|"partime"], languages: [..self explanatory..], frameworks: [..self explanatory..], location: <see below> }

location could be an object as I have it above, or a simple [long, lat] pair, or a url to google maps such as (http://maps.google.ca/maps?q=Vancouver,+British+Columbia&...). [long, lat] is probably the simplest and most precise but it's difficult to author/discover your own location.