I gave four invited talks in Spain, Italy, and Switzerland this summer:

• June 18: Social similarity at Yahoo! Labs Barcelona (host: Ricardo Baeza-Yates) --- this is where I got the idea of a foosball table in the lab...
• June 19: Dynamics of Online Popularity at the University of Barcelona's Department of Fundamental Physics (host: Marian Boguna)
• June 25: Social similarity at DEI, Politecnico di Milano (host: Stefano Ceri)
• June 26: Modeling text generation at the Faculty of Informatics, University of Lugano (host: Fabio Crestani)

Thanks to my wonderful hosts and their groups for engaging discussions and delightful  hospitality!