Interactive maps of the MSCP, and San Diego County in general, are available at the SanGIS website. Maps are available as hard copies, for download with GIS (with a SanGIS account), or online with an interactive mapper to view MSCP maps in specific areas.
Several MSCP maps are available online:
Click here for an overview and photos of vegetation communities throughout San Diego County.
CalPhotos is an excellent resource for a photographs of a variety of plants and animals.