In general, a homeschool friendly college is one that treats a homeschool applicant the same as a public school applicant. Your child would be requested to take the exact same tests as any other student - more tests are not required of a homeschool applicant. Some colleges say they are homeschool friendly, when in reality they have "hoops" that we have to jump through.
Read the complete article from 2008 What is a Homeschool Friendly College?
Since writing the article, I see more and more homeschool friendly colleges all the time. It's rare to find a college that has a barrier for homeschoolers, as home education becomes more mainstream and popular.
Another feature of the Gold Care Club is where I answer your biggest questions about homeschooling high school.