21. The method of claim 15 , further comprising: receiving the data streams from the plurality of network servers; analyzing the data streams including identifying: the plurality of topics based on a frequency of the plurality of topics occurring in the user activities; and a relevancy score for each topic of the plurality of topics, the relevancy score representing a relevance of each topic in relation to each of remaining topics of the plurality of topics.
21. The method of claim 15 , further comprising: receiving the data streams from the plurality of network servers; analyzing the data streams including identifying: the plurality of topics based on a frequency of the plurality of topics occurring in the user activities; and a relevancy score for each topic of the plurality of topics, the relevancy score representing a relevance of each topic in relation to each of remaining topics of the plurality of topics. 22. The method of claim 21 , further comprising: selecting the first subset of topics from the plurality of topics for display in the radial arrangement based on the first subset of topics having a first set of relevancy scores in relation to the main topic that exceed a first threshold.