A machine may be configured to blend connection recommendation streams. For example, the machine, based on a member identifier of a member of a SNS, accesses a list of other members of the SNS and a list of guests (e.g., non- members). The machine identifies a member probability value representing a likelihood of the member inviting another member to connect via the social graph of the member, and identifies a guest probability value representing a likelihood of the member inviting a guest to connect via the social graph. The machine generates a blended list of other members and guests based on the member probability values, the guest probability values, and a coefficient value selected to control a presence of a type of connections in the blended list. The machine generates recommendations for the member to invite people included in the blended list to connect with the member via the social graph.