I spent untold hours trying and failing to use literally every other map plugin available (and I do know what 'literally' means) until I found Intergeo. It was like jumping in a lake on the hottest day of the year.
Intergeo is by far the easiest and smartest way to add a Google map to your web site. After quickly outlining a coverage map for my mobile computer repair service I was able to zoom in and edit it along each border with such precision that I could decide which streets or sub-divisions to include or exclude.
Why are you still reading this? Install it now. You can thank me later.