JMLA
If you look for an accredited open access journal in the area of medical informatics then JMLA (Journal of the Medical Library Association) might be a good source for you. The journal covers a wide variety of topics in LIS including information literacy. For example, "Integrating information literacy into the education of public health professionals: roles for librarians and the library" written by Laura Cobus is an example of papers on information literacy in the current issue of the journal (January 2008).