A paper called "Triadic closure in two-mode networks: Redefining the global and local clustering coefficients" that I have authored will be published in the special issue of Social Networks on two-mode networks (2012). As the vast majority of network measures are defined for one-mode networks, two-mode networks often have to be projected onto one-mode networks to be analyzed. A number of issues arise in this transformation process, especially when analyzing ties among nodes' contacts. For exa...