If you read the link that takes you directly to her page, she says it is her opinion. However, the fact she is working with other people on this project, especially with those other people having the job of evaluating information, the risk of bias goes down.
And, do realize that list contains both Conservative and Liberal-biased sources. She also emphasises that those sources on her list are not necessarily wrong, but they may be presenting the information in a misleading way. She also states she personally uses some of the sites on that list in gathering and evaluating news stories.
So, really, your questions are answered if you read through the page.