My friend is wondering what her last name is, so she asked me, the self proclaimed expert on last names. What does the last name Heberer mean?

You might look here;

Ref:

http://www.houseofnames.com/xq/asp.fc/qx/heberer-family-crest.htm

There are lots of sites that list last name meanings and origins. Sometimes they differ, but the best thing to know is where the ancestors came from, so that you can use that info when searching.

Here is a list of results for web-pages that have last name meaning/origin info:
http://www.google.com/search?source=ig&hl=en&rlz=&=&q=last+name+meanings +and+origins+glossary&aq=1&aqi=g6g-s1g3&aql=&oq=last+name+meanings&gs_rfai=CY92HGow4T L6vCJX6gAS684TmBwAAAKoEBU_Q9lDu

Here's another helpful link (it looks like the genealogy is German):
http://boards.ancestry.com/surnames.heberer/mb.ashx