I had not heard of either sources. One Drop Books had a similar catalog to Frontline Book Publishing, and I look forward to learning from Wisemind Publications.
I have a catalog from 2008 from One Drop Books but I dont think I have ordered from them since. Bredren with the name Steve was the contact. They published the books "Selected Speeches of Haile Selassie I" and "Important Utterances of Haile Selassie I", both of which I think are available online, but in this age of digital take-way-knowledge-y I was sad to see a book publisher I admired had gone out of business.