If you are new to OpenStreetMap and want to start adding content to the map, the following resources will help you get started. The first step is to create an account on OpenStreetMap.org, the second step is clicking the ‘Edit’ button. The videos below show you how. These videos make use of the in-browser ID editor so no specialist software is required.
Registering and Logging In
Short video demonstrating how to register and login to OpenStreetMap to make your first edits:
In the video below Tad walks through the steps for adding buildings to the map.
And in the video below AKA goes into more detail for using the web-based ID editor: