1. The document discusses OpenTable, the leading online restaurant reservation platform, and analyzes its external environment, internal strengths, and competitive position.
2. It recommends that OpenTable create a positive same-side network effect on the diner side by introducing new payment and social features like bill splitting to foster a community of repeat diners.
3. This would help defend against threats from other reservation platforms and one-way reservation sites by increasing diner loyalty and engagement with OpenTable.