Prejudice based on grammer, diction, or dialect

[RonButters at AOL.COM]

Somoeone writes:

<<I am trying to do research on linguistic barriers to social and economic
advancement .  Do you know of any resources available? If so, what would I
need to do to gain access to them?  Thanks very much for any help I can
obtain from you.  Sincerely, Laura Chamberlain.  1Osne1 at scan.missouri.org.>>

My answer: yes, I do know a resource. It is called "the library."