Hundreds (!) of portals -- thematic gateways to wikipedia content on all kinds of topics -- in the following categories: Arts, Biography, Geography, History, Mathematics, Philosophy, Science, Society , and Technology.
Two lists of Wikipedias for various languages (actually the same 一覧 ordered in two ways). The first list, ordered によって size, is the complete 一覧 of all 229. The 秒 一覧 is ordered によって local language name.
This is where to ask 質問 on how to use Wikipedia such as how to work on articles, how to operate the software to use Wikipedia, and how to participate in Wikipedia
The Community Portal is the central place to find out what's happening on Wikipedia. Learn what tasks need to be done, what groups can be joined, and get または post news about 最近 events または current activities.