The 56th Presidential Inaugural Committee will apparently follow some self-imposed limits on the amounts and sources of funds it will accept, according to this report.

The Obama-Biden Transition Project, a 501(c)(4), is also accepting donations.  According to informaion on the site,

The OBAMA-BIDEN TRANSITION PROJECT is a 501(c)(4) organization operated exclusively to promote and ensure the proper functioning of the federal government by ensuring a smooth transition from one administration to the next. Contributions to the OBAMA-BIDEN TRANSITION PROJECT are not tax deductible for federal income tax purposes and do not count against federal campaign contribution limits. Contributions to the OBAMA-BIDEN TRANSITION PROJECT are limited to a maxium of $5,000 per individual. As a condition of receipt of appropriated funds under the Presidential Transition Act, the OBAMA-BIDEN TRANSITION PROJECT must publicly report the source, date, and amount of every donation. The PROJECT will also publicly report the city and state of residence, and employer of each donor.