Doctor fungus is an excellent site devoted to all things relating to molds. It is human health-related:
http://www.doctorfungus.org/
The Aspergillus Website is the best site for "aspergillus" . It is maintained at the University of Manchester, UK and has a human health focus:
http://www.aspergillus.man.ac.uk/
This website provides more details on human health-related issues of "Aspergillus fumigatus" :
http://www.aspergillus.man.ac.uk/patients/index/index.shtml
http://www.patient.co.uk/showdoc.asp?doc=131