Adoption Resources:

DNA adoption resources – Resources for individuals tracing their birth parents or siblings.
Richard Hill – Describes his adoption search – Richard Hill BLOG that includes DNA information for adoptees.

Archival Storage Materials:

Gaylord – A site offering archival storage materials.
Printfile – Has a variety of archival products. This is the site I use for my supplies

 BLOGS:

Blaine Bettinger – Well known person who has useful DNA information.
ISOGG Organization – A large list of Genetic Genealogy Blogs.
Kitty Cooper – Contains useful DNA information and links to other DNA sites.

Education:

YouTube – A variety of videos are available on YouTube covering many different aspects of Genetic Genealogy. Use the search “Genealogy & DNA” or “Genetic Genealogy.”
Family Tree Webinars – Provide a range of useful webinars including over 100 on DNA. Some are free and some require an annual subscription.

DNA Information:

ISOGG Organization Main Page – International Society of Genetic Genealogy.
Male Haplotrees – Male Haplotree information.
Female Haplotrees – Female Haplotree information. 
Genetic Genealogy Group – Institute for Genetic Genealogy
Worldwide DNA Databases – A summary of World Wide DNA Databases.

DNA Testers:

MyHeritage – Autosomal DNA Tests.
Ancestry – Autosomal DNA Tests.
23andme – Autosomal DNA Tests.
Familytreedna – Autosomal, Y-DNA & mtDNA Tests.
Livingdna – Autosomal DNA Tests  (UK Based)       

DNA Tools:

Gedmatch – DNA Matching and analysis. Free site with many tools.
Dnapainter – Enables you to visualize your chromosomes. Has many other useful tools.
Shared cM – Tool to evaluate your relationships using Centimorgans.

Other Useful Links:

Cyndislist – Always a great place to look for information by topic and country.

Other Links – Country Specific:

England
Archives Hub – Descriptions of archives in over 250 universities and colleges.
British Library– Newspapers and catalogs
Genuki – UK reference sources. Useful for basic research
History of Epidemics in England – Archive book describes Epidemics that have occurred in the UK.
Name distribution – Fun site to find where names may originate in the UK.
Old English Census Occupations – Description of occupations that are shown in English Census records.
Order an English Birth, Marriage or Death certificate. – May be a full certificate, a shortened version. When available, the least expensive option is to have it delivered as a .pdf file. (Note: Scotland and Northern Ireland operate their own registry offices)
Society of Genealogist – UK Society (Requires a subscription)

Ireland
Irish Registry of Deeds Project – Useful information but still a work in progress.
Order a Northern Ireland Birth, Marriage or Death Certificate – Only for Northern Ireland.
Order a Republic of Ireland Birth, Marriage or Death Certificate for Ireland – The Registry office for the Republic of Ireland. Many old documents are a free download.

Norway
Norway digital archive – Birth, Marriage and Death Records.
Norwegian Farm Names – Useful site for looking up farms by name.
Geographical Locations in Norway – Bydelag providing geographical information for Norway and useful links to resources in Norway and the US. Organized by Norwegian district.
Emigrant Ship Names – Norway Heritage Site contains names and descriptions on emigrant ships, many with photographs.
Vesterheim – Based in Decorah, Iowa. All things Norwegian including Museum and Norwegian American archives. They publish useful books and guides.

Photographs:

DeadFred – Lots of old photographs with no information.
Old Minnesota photographers and studios – List of old Minnesota Photographers
US Photographers – General List of Us Photographers