While browsing LIS News, I discovered that the Library of Congress now has a blog. That blog is located at http://www.loc.gov/blog/. I am very pleased to see that the Library of Congress has a blog and I have already found a useful presidential resource from reading it.
Today in History: Who’s Buried in Grant’s Tomb Edition has a an essay about President Grant richly linking to primary source material in the American Memory Collection. Here is an example paragraph with five links, "In the spring of 1861, after suffering failed farming and business ventures in Missouri and Illinois, Grant returned to the army as a colonel of the Twenty-first Illinois Volunteer Infantry Regiment. Within months, he was promoted to brigadier general and placed in charge of 20,000 Union troops. Largely through the successive victories of the troops under his command, Grant rose steadily in rank. After the Union's November 1863 victory at Chattanooga, President Abraham Lincoln asked Congress to revive the rank of lieutenant general to honor Grant; only George Washington and Winfield Scott had previously held the esteemed rank. Grant received his commission in March 1864, just over a year before Confederate leader Robert E. Lee surrendered to him at Appomattox, Virginia."
The American Memory Project has lots of freely available resources relating to American Presidents. It is a good place to browse. The Library of Congress also has other resources relating the presidency and presidents as well. I will keep checking out the LoC Blog and maybe find a few new resources in the future.