Montipay (dba SocialWeekend Labs) has been acquired by Adknowledge, a developer of online advertisement management solutions. Based in San Francisco, SocialWeekend Labs operates a portfolio of Facebook and mobile apps and has built tools to help app developers acquire, engage and retain users. The company was backed by investors Brad Harrison Ventures and Great Oaks Venture Capital. The entire SocialWeekend team will join Adknowledge’s office, which is also based in San Francisco. Adknowledge is a portfolio company of JMI Equity and received prior funding from Technology Crossover Ventures.