Wyclef Jean is one of Haiti’s most famous sons, and his tweeting about the earthquake there has been a galvanizing force on the Web.

Jean is most famously a member of the now-defunct Fugees. Publicist Leslie Chasky says he arrived Wednesday in Haiti and is focusing on his family, his Haitian charity and responding to the disaster.

Several of the most popular topics on Twitter referred to a tweet from the singer urging people to send a text to the charity, Yele, to donate $5 toward relief. The number is 501501.

Hundreds are passing his message on by the minute. The Yele Web site is inundated with donations and has crashed under the traffic.

A spokeswoman for the charity says the organization is working to fix the problem and increase the site’s bandwidth.

HOW TO HELP

* You can help immediately by texting "HAITI" to "90999" and a donation of $10 will be charged to your cell phone bill and given automatically to the Red Cross to help with relief efforts.

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* Wyclef Jean, a rapper and hip-hop artist from Haiti, urged people to text "Yele" to 501501 to donate $5 toward earthquake relief. Yéle Haiti is a grassroots movement inspiring change in Haiti through programs in education, sports, the arts and environment, according to its Web site.

* The State Department Operations Center has set up the following number for Americans seeking information about family members in Haiti: 1-888-407-4747.

* You can also go online to organizations such as the Red Cross and MercyCorps to make a contribution to the disaster relief efforts.

Other Web sites accepting donations include:

-Haitian Health Foundation
-Hope for Haiti
-UNICEF
-International Medical Corps
-Beyond Borders
-AmeriCares