Map controls for sites running https

A team I work with is currently in an unfortunate situation. They've spent a lot of time integrating the google map control on their site but they didn't discover that to run google maps on a https site you must license the control (and it isn't cheap) and the same goes for bing maps.

So my question is do you know of any cheaper/free map controls like google or bing maps?

Where is the zoom button on Google Maps?

The Zoom control displays "+" and "-" buttons for changing the zoom level of the map. This control appears by default in the bottom right corner of the map.

OpenLayers