We are glad to inform you that the 20th number of the ISSI Newsletter has come out.

Content:

• Editorial: 5 years, 20 issues
• Editorial: Nordic paper with 100+ citations
• Conference calls: 6th WIS & 11th COLLNET
• Conference calls: 11th STI Conference, Leiden
• Introducing V. Larivière
• Conference reports: 5th WIS & 10th COLLNET (H. Kretschmer)
• Conference reports: Metrics 2009 Symposium (R. Rousseau & D. Wolfram)
• Research Focus: Cardiovascular Research in Spain (M. Bolaños-Pizarro et al.)