I am looking for websites that contain short stories and articles
targeted at 3rd grade readers.

To determine whether the short stories/articles of such sites are
level appropriate, please use Microsoft Word's Flesch-Kincaid Grade Level
Reading Ease tool.

Sites submitted in answer should contain an ample amount of short
stories/articles that fall anywhere between grade levels 1.5 and 4.5
on Flesch-Kincaid.

Please submit a minimum of 10-15 sites meeting the above requirements.
Please understand that I'm not looking for a list of teacher
resources sites nor short stories/articles writen BY 3rd graders.  Thank you!