geoext

mapas
base layers
http://gis.wis.ro/index.php/component/search/?searchword=google&ordering=newest&searchphrase=any&limit=20

change proj
http://gis.stackexchange.com/questions/8981/openlayers-all-image-layers-are-out-of-place-on-google-maps-v3-and-osm-base-lay
get feature info
http://workshops.opengeo.org/geoext/stores/getfeatureinfo.html
geoext examples
http://geoext.org/examples.html#examples
map examples
http://www-scf.usc.edu/~vtouch/Assignment10/
containers examples
http://api.geoext.org/1.1/examples/layercontainer.html
tutorial
http://www.geoext.org/tutorials/layertree-tutorial.html?highlight=base%20layer
http://download.osgeo.org/pgrouting/foss4g2010/workshop/docs/html/index.html

Creating a Map Panel that We Can Add Layers From the Grid To
http://geo.ifip.tuwien.ac.at/imak/2009/stack_workshop/doc/wms_browser/map.html
http://api.geo.admin.ch/main/wsgi/doc/build/api/wms.html