Per biography.com:
"As the 44th First Lady of the United States, Michelle Obama has focused her attention on issues such as the support of military families, helping working women balance career and family, and encouraging national service. During the first year of the Obama presidency, Michelle and her husband have volunteered at homeless shelters and soup kitchens in the Washington, D.C. area. Michelle also has made appearances at public schools, stressing the importance of education and volunteer work.
Ever conscious of her family's diet and health, Michelle Obama has supported the organic food movement, instructing the White House kitchens to prepare organic food for guests and her family. In March 2009, Michelle worked with 23 fifth graders from a local school in Washington, D.C., to plant a 1,100 square foot garden of fresh vegetables and install bee hives on the South Lawn of the White House. Periodically, throughout the summer, the same students returned to harvest various foods and learned to cook fresh-grown organic vegetables. In 2010, Michelle has put efforts to fight childhood obesity near the top of her agenda."
And she's also continued her career.