Zillow last week joined a growing list of Web sites that allow homeowners and real estate agents to post virtual “for sale” signs for free. The feature plugs a hole on the site, which touts a ...

Mara Flash Blum of Sotheby’s has hung a “Townhouse For Sale” sign outside the 1860s-vintage brownstone at 89 Joralemon St. The asking price is $5.95 million, according to her web page about ...