Some fortunate Berkshire Hathaway investors at this year's annual meeting will get the chance to sleep in the same bedroom Warren Buffett did as a boy. The home-sharing service Airbnb is offering three nights at the Omaha home around the May 2 meeting as a way to promote its services. Shareholders who want to stay at the three-bedroom house must submit short essays and prove they own Berkshire stock. The crowd that fills Omaha's downtown arena and several overflow rooms to listen to Buffett answer questions always books every hotel room in the region. Airbnb is signing up people willing to rent all or part of their homes to help provide rooms for the more than 40,000 people expected to attend this year's meeting.