From Helen:

The Nature Conservancy has a summer internship position they are offering in their Columbia office. The internship is for a Marketing and Website Design Intern. Their position is posted in the JobMate system and I am attaching the information they provided our office regarding the application process for this opportunity. Note that in the application instructions, it indicates that... * All Internship positions will be posted on www.nature.org * Applicants must complete online application, submit their resume and cover letter to the position of their choice. Based on the job description posted the applicant must include in their cover letter how their educational experience and other related experience will contribute towards the summer project * Friday, November 13, 2009 is the application deadline for all internship postings

Here are the full details.