The following is a list of resources that may be able to help you to find or learn want it is you are looking for.
Books – All types of DNA Tests & How to Use Them:
Books – Y-CHR & mtDNA & How to Use Them:
Books – Examples of Solving Genealogical Brick Walls with DNA
Books – Overviews of Entire Genetic Genealogy Revolution
Genetic Genealogy Blogs
Roberta Estes – DNA eXplained (all DNA topics & more) http://dna-explained.com
Richard Hill – DNA Testing Adviser (DNA & Adoption)http://www.dna-testing-adviser.com
Blaine Bettinger – The Genetic Genealogist (all DNA topics & X-chromosome) http://www.thegeneticgenealogist.com
CeCe Moore – Your Genetic Genealogist (atDNA, adoption & latest sales) http://www.yourgeneticgenealogist.com Mike Maglio – Origin Hunters (lots on Y-DNA & ethnic origins) http://www.originhunters.blogspot.com
Associations of Genetic Genealogy
International Society of Genetic Genealogy (ISOGG), www.isogg.org
Journals for Genetic Genealogist
International Society of Genetic Genealogy (ISOGG), www.isogg.org
DNA Testing Companies
AncestryDNA (USA)
23andMe (USA)
FamilyTreeDNA (USA)
GeneBase (CAN)
MyHeritage(Israel)