In the 1960s, Oak Parkers began a concerted effort to avoid the destructive racial housing practices occurring in nearby communities. Racial steering and block-by-block panic peddling caused rapid racial change on Chicago's west side, including the Austin Community Area adjacent to Oak Park. Whites left west-side neighborhoods based on concerns of property value losses and crime increases, and some businesses left, as well. The Village of Oak Park passed a fair housing ordinance in 1968 (in the same year as the federal Fair Housing Act) to ensure equal access to housing in the community. In 1972, the Oak Park Housing Center was founded by Roberta "Bobbie" Raymond to promote integration in the community, by ensuring equal access and discouraging white flight. Part of this effort included banning "for sale" signs on houses. Although this law became unconstitutional with the decision in" Linmark Associates, Inc. v. Township of Willingboro, use of the signs is still strongly discouraged by local realtors.