Below there are links to some places I visited professionally.  Then there are some related to mathematics and, at last, there are some related to my hobbies.

Places I visited

• Institut Computational Mathematics, Carl-Friedrich-Gauß-Fakultät, TU Braunschweig
• Centre for Interdisciplinary Research in Computational Algebra, School of Mathematics and Statistics, School of Computer Science, St Andrews
• Departamento de algebra, Universidad de Granada
• Centro de Álgebra da Universidade de Lisboa
• Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Bragança

Other links

• Centro de Matemática da Universidade do Porto
• Sociedade Portuguesa de Matemática
• Centro Internacional de Matemática

Hobbies

• Grupo Desportivo dos (4)Quatro Caminhos … my orienteering club
• worldofo … World of O — international orienteering news

Blog

• matiori … my blog

Other blogs…

A blog on Computational Semigroup Theory: follow this link.