Summary.In the expanding context of new literacies, the abilities to know how to locate and evaluate web information resources so as to construct knowledge are acknowledged as extremely important worldwide. Current literacy curricula should encourage the development of such abilities, and their successful implementation requires that teachers themselves are properly prepared. The present study reports the web searching and evaluating practices for educational purposes employed by both pre-service and in-service teachers. Data were collected via an anonymous online questionnaire. The descriptive study exhibits teachers' web reading practices with the purpose of identifying aspects that require attention when designing and implementing relevant educational initiatives. According to the findings of this research, both pre-service and in-service teachers almost exclusively use popular search engines to locate web information resources, and they choose such resources without examining their wider context. To evaluate web information resources, they consider mainly morphological and design elements, rather than content features such as their origin and credibility. The findings raise the potential of applying critical literacy principles on the Web so that teachers can approach it critiquely .i when using its resources in educational settings.