Kammala wannan jumla: Kwanaki 100 na farko na Shugabancin Barack Obama ya fara ne a lokacin da
rantsar da Barack Obama tare da sauya Whitehouse.gov daga sigar Gwamnatin Bush zuwa sigar Gwamnatin Obama da karfe 12:00 na yamma a ranar 20 ga Janairu, 2009. Wannan shi ne karo na biyu da shugaban ya yi amfani da dandalin intanet. Da karfe 12:01, Daraktan Fadar White House na New Media Macon Phillips ya wallafa shafin farko na shafin yanar gizon tare da jigogi na "sadarwa", "bayyanannu" da "haɗuwa".