Here are some aerial photos from some of the put-ins I've used in the past, all are in Maine. The little blue fish are the put-in's and the GPS point is at that location. All aerial photos were captured from NASA's World Wind program (free) which just happens to be the ultimate trip planning tool for paddlers, I can see rapids to avoid and islands to visit.
Little Boyd: 45.19236 -68.91756
Big Boyd NW: 45.16951 -68.92603
Big Boyd SE: 45.16307 -68.90880

Lower Togue: 45.82337 -68.88509
Upper Togue: 45.82365 -68.88649

Branns Mill: 45.10894 -69.17677

Kenduskeag Stream: 44.79718 -68.76907

Hirundo: 44.98504 -68.79274

Fields Pond: 44.73677 -68.73199

Sebec Narrows: 45.25177 -68.98824

Pushaw, Goulds Landing: 44.89750 -68.78717

Piscataquis River [So Dover to Milo]: 45.20481 -69.07947

Penobscot [Hamden]: 44.76523 -68.79662

South Br Marsh River: 44.59101 -68.86456

Penobscot [Bucksport]: 44.57178 -68.79663

Union River: 44.53492 -68.42133

Rollins Mill Pond: 45.05117 -69.03014

Marsh River [North]: 44.60963 -68.87333

Hermon Pond: 44.78068 -68.92333
Hammon Pond - Accessed via Hermon Pond

Sebec River: 45.26997 -69.10964

Ebeemee: 45.42730 -69.02943

Mattawamkeag: 45.82998 -67.98618

Attean Pond [Beginning of Moose River trip]: 45.59660 -70.25376

Garland Pond: 45.03560 -69.15865

Donnell Pond: 44.59619 -68.17883

Wassookeag Lake: 45.03585 -69.29647