I rarely make a Google Map without using map markers from the Map Icons Collection. The collection has more than 600 free icons which you can use as map markers with the Google Maps API, which means you can nearly always find a marker that fits the purpose and design of your map.
The collection has previously been hosted on Google Projects but now has its very own website. With the new website comes two cool new features, styles and custom colors.
The custom colors feature allows you to change the color of any map marker to fit the style of your map and website. The style feature lets you choose from seven different style of marker, including iPhone, gradient and classic.
If you are a Google Maps API developer then bookmark this collection now!