Indeed, you are limited to 5 topics: we limit the initial number for two main reasons.
First, we want to avoid cybersquatting (people who would create many topics without curating them and wasting a topic name/url).
Second, we, at Scoop.it, value more quality than quantity. Keeping updated 5 topics at the same time isn’t that easy.
Using Scoop.it Pro? You can create 10 different topics.
Using Scoop.it Business? You can create 15 different topics.
Using Scoop.it Edu? You can create 20 different topics.