Ok I've added a way to disable Instagram and Twitter. Is there other ones you'd like disabled? Or are you wanting to set specific ones to always show?
Right now the ones shown are automatic and dynamic. It tries to show the most relevant columns ranked in the best order, depending on your search. This opens up the idea of doing things like knowing you are looking for a code problem and showing stackoverflow results in the 2nd column.
I mean those are 2 very different design directions. Auto vs manual... Are you super thinking a full manual version would be good? I've found people generally use things more when it is automatically good.
I'll have to think more about this. A number of people did bring this up...