The Post describes how the Obama campaign raised $100,000 from certain families.

The families gave to as many as five committees, records show, and 27 of the 94 families also bundled money from others, collecting millions of dollars on top of their personal donations.

…

Under the law, the maximum amount an individual can give in a presidential election year has gone from $25,000 to $70,100 over the past five years. And by creating joint fundraising committees — allowing donors to give the maximum to all three funding pools at once — campaigns have become much more efficient in collecting the donations.

This seems to be referring to the biennial federal aggregate limit, but it’s not quite right.  A contribution limit chart for 2007-2008 is available here.   There will be new limits announced soon because some are indexed.