Sure! Here are the responses categorized as "Yes" (valid source) or "No" (not a valid source):
- the National Archives - Yes
- a weblog of a guy who describes himself as a “history nerd” - No
- a Wikipedia article - No (can be a starting point but not a reliable source)
- a weblog of a college history professor about her area of specialty - Yes
- a org website that was last updated in 2008 - No (age of information matters)
- a com website with its own online store - No (generally not a valid source unless it's a reputable company and the information is relevant)
- a gov website - Yes
- a website with claims that you can’t verify at another source - No
Valid sources: National Archives, weblog of a college history professor, gov website.