You can make graphic organizers yourself using the Microsoft Word or Power Point SmartArt feature. Here are a few examples I whipped up in under five minutes:
These were created using the "colorful" format, but you can choose black and white, if desired.
I've uploaded these graphic organizers to get you started. Just click on the graphic above, and they're yours!
After finding the main idea and key details, students can simply translate them into a paragraph, and voila! A neat little summary has been created.