We hope you've been having fun with API 1.5 with its hot new features such as model placemarks, textured polygon placemarks and HTMLBoxes.
It's now even easier than ever to pick up these new features with the updates to the Developer Network:
Model Placemark guide and interactive sample (see Model Placemarks on the left sidebar).
Polygon placemark fill image and scene lighting guide.
HTMLBox guide and interactive sample (see HTMLBox on the left sidebar).
Have fun reading these guides and playing with the samples. As always, don't hesitate to ask questions on the forum.