President Barack Obama and first lady Michelle Obama are asking the public to help them develop projects for his new presidential centre on Chicago's South Side.
The Obamas are starting up a foundation website -- Obama.org -- in the hours before Donald Trump is inaugurated the 45th president.
Obama says the foundation's projects will be developed "all over the city, the country and the world." He asks Americans to "tell us what you want this project to be and tell us what's on your mind."
The foundation is developing Obama's presidential library and centre in Chicago.
The president also took the opportunity to say goodbye and ask the public for feedback on the POTUS Twitter account.
It's been the honor of my life to serve you. You made me a better leader and a better man.
— President Obama (@POTUS) January 20, 2017
I won't stop; I'll be right there with you as a citizen, inspired by your voices of truth and justice, good humor, and love.
— President Obama (@POTUS) January 20, 2017
As we look forward, I want our first steps to reflect what matters most to you. Share your thoughts with me at https://t.co/fGUxlpLVue.
— President Obama (@POTUS) January 20, 2017
I'm still asking you to believe - not in my ability to bring about change, but in yours. I believe in change because I believe in you.
— President Obama (@POTUS) January 20, 2017
Yes we can.
— The White House (@WhiteHouse) January 20, 2017
Yes we did.
Thank you for being a part of the past eight years. pic.twitter.com/mjmr4RkxpV
The Obamas met with president-elect Donald Trump on Friday morning before the official inauguration ceremony began.