Persistence and Availability of Web Services in Computational Biology
108 of the 274 respondents (39%) to the author survey chose to answer the optional question about the Web address of their service and also gave numbers for monthly and total visits and runs. We combined this information with the number of times a service is cited in articles deposited in PubMed Central. Plotting these information against each other in log scale reveals relationships, shown as trend lines. The data points are based on the information given by the authors of the service themselves.