San Francisco -- UrbanSitter, the San Francisco-based developer of an online service that helps parents and sitters connect through people they know, said on Tuesday it has landed $1.75 million in a round of seed funding, led by First Round Capital. Rustic Canyon Partners, Menlo Ventures and several angel investors also participated. The company also said it recently expanded to San Diego, Napa Valley and Sonoma, Seattle, Boulder and Lake Tahoe, and plans to add the New York, Chicago, Denver and St. Louis markets over the next month. UrbanSitter, which launched in September, said it will use the additional funding to support new product development -- including a mobile component -- and further expand into new cities. Rob Hayes of First Round Capital and Neal Hansch of Rustic Canyon Partners have been added to the company's board of directors.