Scientific Association that deals with the former Portuguese colonies and Lusophonie. Besides information on publications, conferences and the like, you will find their journal "Lusotopie". The fulltext of the articles can be accessed for the issues between 1995-2004. As from 2005 on, access is subject to a fee.
Colonial Voyage is a website, focusing on the colonialism of European nations in Africa, America, Asia and Oceania and its impact especially in the field of monuments and settlements built by the colonial powers [according to the site editor's information, editorial staff ilissAfrica].