Yele is Wyclef Jean's organization. He is Haitian and has serviced Haiti since 2005 through this organization.
http://www.yele.org/
I still do not recommend people text Yele. I recommend donating through the Red Cross or Doctors without Borders. This isn't a slight to Yele so much as it is about the logistics of the text donation process. Ultimately all that matters is that the money gets to Haiti and it doesn't have to occur through Yele.