About Hairballs in Felines
 
Feline Hairballs are formed when the 
cat swallows too much hair from its fur.  If you ever stepped on one 
barefoot, you probably know… Hairballs are not really ball shaped, but rather 
sausage-like wads of wet hair that your cat has vomited.  There is help.  
Below are several links for dealing with feline Hairballs.
 
Controlling Your Feline's Hairballs
What's up with cat Hairballs?
Cat 
Hairballs and Feline Hairball Prevention
Feline Hairballs article at The Pet Professor
Feline Hairballs
Avoiding Cigar Shaped Cat Hairballs 
Feline Hairballs: Hairball Treatments
Hairballs.com
Help for Feline Hairballs
Hairballs 
in cats and felines