Where can I get information on genealogy and genealogical collections?

Check out the Round Rock Public Library's Genealogy page. Other resources include:
 
Williamson County Genealogical Society   
Williamson County Historical Commission  
Texas State Library Genealogy Resources

LDS Round Rock Family History Center
8140 Racine, Austin, TX  78717
Phone: 512-388-1160  

LDS Austin Family History Center,
1000 Rutherford Lane, Austin, TX  78753
Phone: 512-837-3626

LDS Georgetown Family History Center
218 Serenada,  Georgetown,  TX  78628 512-863-7173
Phone: 512-863-8221

Round Rock Cemetery Association,
contact Anthony Wombler at 512-267-9493 or Irene Varan at 512-996-8582
 
Texas State Cemetery, contact Clint Lynch at 463-7875.

Old Settler's Association, contact Betty Smith at 388-1733.