Methods and systems to facilitate real time communications and commerce via a social network. In one embodiment, a social network is used to provide information about an advertiser to demonstrate the trustworthiness of the advertiser to potential customers. In one embodiment, a method includes receiving a request from a customer for a document; and providing the customer with an advertisement embedded in the document, the advertisement including information to identify an advertiser of the advertisement based on a social network. In one embodiment, the presentation of the advertisement or the advertiser is at least partially based on the social network. In one embodiment, communication references are provided to facilitate the requests for real time communications with a member of the social network via a connection provider, which performs scheduling, filtering, payment processing, etc. for the member of the social network.