One good journal readily available online is JAIR: http://www.cs.washington.edu/research/jair/home.html
There are numerous lists of links to AI journals, such as this list: http://www.dai.ed.ac.uk/research/ai_journals.html
One of the most popular AI texts today is Russell and Norvig's Artificial Intelligence: A Modern Approach http://www.cs.berkeley.edu/~russell/aima.html. The new (2nd) edition is now out!
Here is the AAAI conferences page: http://www.aaai.org/Conferences/conferences.html.
Here is the European Conference on Artificial Intelligence (ECAI) main page for the 2002 conference: http://ecai2002.univ-lyon1.fr/show_en.pl.
IJCAI is the International Joint Conference on Artificial Intelligence, the main international gathering of researchers in AI. http://ijcai.org/.
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