Help:Mind map of Nokia Developer
The following types of information are all displayed in the Expert Search page, identified using the icons shown. Expert search allows you to search using site area and topic, where the topic is defined by the ontology.
The Wiki defines additional categories which aren't present in the ontology, and hence are not searchable in Expert Search. These can be viewed in Special:Categories. A mind map of some of the more important information in the wiki is shown below.