I've been working on a plugin for IkiWiki to display locations I've mentioned in my blog on an OpenStreetMap map. While this still needs some tuning, you can see the first version here. This is using OpenLayers to show a set of icons on top of the OpenStreetMap map tiles. Besides the arrows and +/- on the upper left to move around and zoom in or out, you can drag the map to pan around or shift-drag to zoom in on a selected area. The trailers are places I've camped in my RV, and the building with columns are museums, and the tree is a picnic area. If you click on one, it will give the name in a popup and a link to my blog article. If my site becomes wildly popular, I may need to switch to an alternate source of map tiles.