Increasingly common nowadays is the "open" adoption process, in which the adoptive parents actually meet and usually stay in touch with the birthparents. Each adoption is a unique experience and the degree to which there is openness and interaction between adoptive parents and birth parents varies. It depends on how comfortable all of the parties are with the process and circumstances. However, most adoption agencies now encourage some degree of openness.
Closed adoption, not to be confused with sealed records, is an adoption in which the adoptive family and the birthmother never meet and know nothing or very little about one another. With the advent of open adoption, closed adoptions have become the exception in domestic adoption rather than the rule. The term closed adoption is most often used in relation to post-adoption contact, whereas the term sealed records is related to the access of legal documentation surrounding the birth and placement of the adopted child once the adoption is final. It is entirely possible to have a closed adoption and unsealed records or an open adoption with sealed records. The two practices are not mutually exclusive.