GeroNikolov

This plugin is very, very simple.
It represents the Swarm app place checkin in your personal blog!
With just a few simple clicks you can create new checkins from your Dashboard and start sharing a new kind of amazing stories!
It uses the <a href="https://developer.foursquare.com/" rel="nofollow ugc">Foursquare Venue API</a>, to search places all around the globe.
The plugin comes with a built in shortcode, which automatically shows the last checkin, that you’ve done. 
To call it just user this shortcode in a Post, Page or even in the Shortcode Widget – [last_checkin]
<a href="https://github.com/Gero0Nikolov/checkin" rel="nofollow ugc">Join the contributions!</a>

Checkin

This plugin will allow you to share your trips with your readers. Based on the Foursquare and Swarm venues API.

JavierMendezPWG

You can configure your locations into a page with shortcode [simplegmaps], you only must add a list of parameters, 
latitud (latitude), longitud (longitude), zoom, tipomapa (TypeMap), titulomarker (Title of the marker), alto (height of div), ancho (width of div).
Example: 
[simplegmaps latitud = “40.430224” longitud = “-2.416992″ zoom=”13″ alto=”300px” ancho=”300px” titulomarker = “Hola Mundo!”]
Visit me:
web: http://www.programacionwebgalicia.com/
blog: http://programacionwebgalicia.wordpress.com/
facebook: https://www.facebook.com/pages/Programaci%C3%B3n-Web-Galicia/206144426132817
twitter: https://twitter.com/PWGalicia

SimpleGMaps

Place locations into div using Google Maps V3

Checkin vs SimpleGMaps