Top Ten Tasks/Progress/Clickable POIs on the frontpage

Update (October 2012) - research of possible solutions

Solution	Live examples	How does it work?	Notes (requirements, pros/cons etc.)
Overpass API	Overpass API Click Layer for OpenLayers (just click any OSM object) Overpass API Popup Layer for OpenLayers (more cleaned up)	AJAX call to the Overpass API	Requires Overpass API server
OpenLinkMap	OpenLinkMap	OpenLayers layer with POI markers constructed from AJAX response (example response)	Custom solution
WFS (Web Feature Service)	OpenLayers Example Leaflet plugin for WFS support (with GeoJSON output)	AJAX call with GetFeatureInfo WFS request WFS server returns GeoJSON (or potentially other format easily supported on Javascript side)	Requires a WFS server (GeoServer, Mapserver, ...) with POI geometry database OGC standard