Doozyrama!

OpenStreetMap is a project aimed squarely at creating and providing free geographic data such as street maps to anyone who wants them. It is a free editable map of the whole world. It is made by people like you. It allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.

MAPS.ME offers the quickest offline maps of all the countries of the world. Travel with full confidence: wherever you are, MAPS.ME addresses all your offline mapping needs.

WikiMapia is a privately owned, online map and satellite imaging resource that combines Google Maps with a wiki system, allowing users to add information, in the form of a note, to any location on Earth. Users may currently use this information for free. Inspired by the success of Google Maps and Wikipedia, two Russian Internet entrepreneurs Alexandre Koriakine and Evgeniy Saveliev launched the website on May 24, 2006. It now has over 15,000,000 places marked. Although registration is not required to edit or add to WikiMapia, over 1,100,000 users from around the world currently are registered. All content uploaded by users is currently made available under Creative Commons license for non-commercial use through WikiMapia API. Approximately 1,000 new users register everyday. »

AddressToGPS is an open-source tool to search for an address, location, or area using the Google Maps javascript API. Once you have selected a location you then can get the coordinates and open the location in a maps app (OsmAnd). This tool does not require your location, only an internet connection.