What information is available for rail and bus travel in Africa? So far, the only information I've been able to find come from first-hand accounts of people who made the trips themselves. I'm interested in rail and bus schedules mostly (even though I know they're notoriously late).
In Europe, The European Rail Timetable does a spectacular job of compiling train data. This is the sort of thing I'm interested in for Africa, but I haven't been able to find anything similar.
Rome2Rio is surprisingly effective in some African countries. Again, they won't cover every local minibus - most of them won't have timetables and certainly won't be online. This is why so many references to them are on blogs etc.
However, for those that do, take for example, Harare to Cape Town on the site - it shows flight, bus & train, and driving options, including times and prices.
Travel guides (either printed or pdf editions) like Lonely Planet usually have extensive sections on overland transport. The issue with them is that they are not really updated very often (they print a new edition every year in many cases, but most of the content stays the same). From my personal experience, this issue is getting worse and worse.