http://www.childwelfare.gov/pubs/f_fospar.cfm
Child Welfare Information Gateway
This factsheet is written for foster parents who are considering adopting one or more of the children in their care. While this factsheet does not address the specifics of how to adopt, it provides information on the differences between foster care and adoption, and it explores some of the things for foster parents to consider when making the decision about whether to adopt a child in their care.