Ms. Chiang,
I would like to change my topic to Bigfoot.

Possible Thesis:
The bigfoot is a creature that many people have claimed to see, and others have found evidence of it's existince, but it is unsure if it is real or not.

Subtopics:
-locations of where they're supposed to live
-variations of the myth ("skunk ape", "yeti", etc.)
-sightings
-evidence

Sites:
http://www.worldbookonline.com/wb/Article?id=ar059170&st=bigfoot (location and sightings infomation)
http://school.eb.com/all/eb/article-9065832?query=Bigfoot&ct=null (description of "animal")
http://en.wikipedia.org/wiki/Bigfoot#Bigfoot_phenomenon (in depth information)
http://www.bfro.net/ (bigfoot researchers organization)