There are lots of websites about Berlin in general and tourism in Berlin in particular. Most of them are naturally in German, but quite a few are in English. We're happy to share with you several websites and blogs we personally enjoy reading, including some that we found helpful when we first came to Berlin:
Ex-Berliner: Berlin's English-language magazine
Berlin on a Platter: Luisa's restaurant critique blog
http://www.thewednesdaychef.com/berlin_on_a_platter
The Needle: Joseph is a cultural historian with some very interesting insights on contemporary life and events in Berlin
Afar: "The experimental travel guide"
https://www.afar.com/travel-guides/germany/berlin/guide
i ♥ Berlin: Just about everything, made by young English-speaking Berliners for the young at heart
If you know any other recommendable websites suitable for English speakers, feel free to email us about them so we could add them to this list.