You can zoom in using the slider on the left, and click & drag the map to move it around. When you hover over a pin you'll get the name of the place. Click on a pin to see their hours, address, etc. When you hover over a place in the list, it will be highlighted on the map. Gray pins are transportation hubs, which may or may not have wifi. There is free wifi at the Eugene airport.
See below for other local maps and resources, and comments.