Asian Pacific American Heritage Month celebrates and recognizes the accomplishments of Asians and Pacific Islanders in the United States.  May was chosen to commemorate the immigration of the first Japanese to the United States on May 7, 1843, and to mark the anniversary of the completion of the transcontinental railroad on May 10, 1869.  The majority of the workers who laid the tracks were Chinese immigrants.

Facts about Asian Americans & Pacific Islanders
Asian American/Pacific Islander Profile (U.S. Dept. of Health & Human Services)
We The People: Asians in the United States (U.S. Census Bureau)
White House Initiative on Asian Americans and Pacific Islanders

Exhibits and museums
Asian-Pacific American Heritage Month (Library of Congress)
Asian Pacific American Heritage Month (Smithsonian)
Asian Pacific Americans in the United States Army
Center for Asian American Media
Chinese American Museum
Chinese Historical Society of America Museum
The Chinese in California, 1850-1925 (Library of Congress, UC Berkeley, California Historical Society)
Japanese American National Museum
Korean American Museum
A More Perfect Union: Japanese Americans & the U.S. Constitution (Smithsonian)
Museum of Chinese in America
National Japanese American Historical Society
On Gold Mountain: A Chinese American Experience (Smithsonian)
Smithsonian Asian Pacific American Program (Smithsonian)

Arts, film, music, news, social issues, and other topics 
APA Pop
Asia Pacific Arts (University of Southern California)
Asian American Writers' Workshop
Asian-Nation: Asian American History, Demographics & Issues (C.N. Le)
AsianWeek
Connecting Cultures: Music of the Mekong River (Smithsonian)
Journal of Asian American Studies (Association for Asian American Studies)
Lantern Review: A Journal of Asian American Poetry
Na Leo Hawaii: Musics of Hawaii (Smithsonian)
National Asian American Theatre Company
Pacific Citizen

Research centers
New York University Asian/Pacific/American Institute
UCLA Asian American Studies Center

Campus events
CSUMB Asian Pacific Islander Association sponsored events