The hard part for Yelp: getting computers (or, similar to OpenTable, specialized appliance PCs) into the restaurants. That's why OpenTable took so long to take

The hard part for Yelp: getting computers (or, similar to OpenTable, specialized appliance PCs) into the restaurants. That's why OpenTable took so long to take off -- they had to convince a critical mass of restaurants that it was worth it. I have mixed feelings about OpenTable. I know three people who work there, including an executive. I wish them well. I am concerned that the company's prosperity is based on value to restaurants that does not always actually exist. I, and the OP, could be wrong.