Yes, you can!
On the 17th of December the Obama administration decided something historical: Americans can Travel to Cuba. Well actually Americans can travel if the trip falls under one of 12 categories. For visitors that we organize as Cubafortravel.com the interesting categories are:
(4) professional research and professional meetings;
(5) educational activities;
(8) support for the Cuban people;
Basically if the content and purpose of the program that you as an American will be doing in Cuba then you are sticking to the Law of your country. And we as Cubafortravel.com will make sure this is what is happening.
On top the control over whether the trip sticks to the law or not is based on the statement of the participant. And the American authorities at present are not interested in checking all the details.
This means that travel agents as well as private persons can write Cubafortravel.com and get a quote or proposal for a trip. Even we have contacts in the US that can book the travelers on the direct flights from Miami to Havana.
On the Cuban side Americans are still treated differentially when it comes to the procedures of booking tours and services. Cubafortravel.com has the local contacts and agreements to book the services for American visitors in the correct and legal way in Cuba. This implies other rates unfortunately than for Canadians or Europeans but it makes the trip legal from a Cuban perspective.
So we are looking forward to your requests at firstname.lastname@example.org