Below are various websites to help you with your research.

MCHS Destiny 
GALILEO - (Contact Ms. Tucker for the password)
ERIC
100 Search Engines for Academic Research
A Guide to Online Academic Research - (A great step-by-step guide to academic research)

National History Program
National History Day
National History Education Clearinghouse
NHD Teacher Resources
NHD Noodle Tools  
National Archives
Georgia Enclyclopedia
Library of Congress
Chronicling America - LOC

References and Citations
Citation Machine
Easy Bib

Primary and Secondary Sources Help
Compare and Contrast Sources
Distinquishing between sources
Sources in History

Historical Photos
LOC Historical Photos Project
NYPL Historical Gallery
National Museum of American History

MetaSearch Engines
Ixquick MetaSearch
MetaCrawler
Dogpile

Academic Research Websites
Base Academic Search Engine
RefSeek Academic Search Engine
Microsoft Academic Research Engine
Academic Index
Google Scholar
Federal Resources for Academic Excellence
Virtual Learning Resource Center
American Memory - Library of Congress
Worldcat
Librarian's Internet Index
NASA Research
National Agricultural Research 
Smithsonian Institute Research Info System
The British Library
CIA Factbook
State Legislative Websites Directory
Directory of Open Access Repositories
U.S. Government Publications
Online Journals Search Engine