From the SMGF "How to get Involved" page:
Thank you for your interest in the Sorenson Molecular Genealogy Foundation research project! For nearly ten years we have collected DNA samples and pedigree information from generous volunteers around the world. We have recently reached our original collection goal of 100,000 participants and we have now transitioned into the next phase of our project. This next phase consists of targeting specific populations and lineages which are under-represented in the current data, continuing the analysis of samples already collected, and developing applications for genetic genealogy research.
To fully focus our efforts on these objectives SMGF is changing the way we collect samples. SMGF will no longer collect new samples directly through our website. Instead, sample collecting will be handled by affiliate organizations, freeing SMGF resources previously dedicated to sample collecting to support data analysis and innovation.
The announcement goes on at some length to describe the new focus of the Sorenson Molecular Genealogy Foundation. You can read all the details at http://www.smgf.org/get_involved.jspx.