how to evaluate a specific area

[Anita Oakley]

Other than zip skinny, are there any other suggestions of how to evaluate a particular area of any given town?  I am looking at Dallas in particular (and all surrounding areas).  Since I am not familiar with the different neighborhoods, I am trying to get more info as to whether an area is in demand by tenants or undesirable because of criminal activity or in a run down part of town.  Any ideas and comments will be appreciated!