Ana Isabel Correia e Sérgio Nunes
"As we may think", Vannevar Bush.
"The Seven Ages of Information Retrieval", Michael Lesk.
""Is This Document Relevant? ... Probably": A Survey of Probabilistic Models in Information Retrieval", Fabio Crestani et al.
"Information Retrieval on the Web", Mei Kobayashi et al.
"The Semantic Web", Tim Berners-Lee et al.
Cristina Ribeiro: Semantic Web
Mark Sanderson: Information Retrieval Techniques in Commercial Systems: Google, Teoma and WiseNut