Which of the following might be considered a valid source of online research select all it apply the national archives a wig web log of a guy Wikipedia a weblog of a college history professor a.org website last update in 2008, website that owns online store a.gov website a website which claims that it can't verify

The possible valid sources of online research are:

- The National Archives
- A weblog of a college history professor
- A .org website (unless it is outdated or biased)
- A .gov website

These sources typically provide reliable and credible information. However, it is important to critically evaluate the information provided, regardless of the source.