I'm Sonia, Wikipedian. At the moment, I enjoy improving sections of any article, especially businesses, commerce, technology, or history. I also have a interest in articles about communities, formerly having focused on topics pertaining to my native Toulouse.
A short list of favorite Wiki-related external links and gadgets appears in the sections below.
Enable ProveIt at your preferences under 'Gadgets'; it will then appear in in the edit box. Create references by filling in fields such as URL, page title, etc.
Search database at https://books.google.com with desired keyword(s). Once you find a page containing what you need, copy and paste page URL into the Citation Tool, and it will instantly generate a ref you can add directly to Wikipedia
The free Google Newspaper Archive is a searchable database of old newspapers. When you find the article you need, copy/paste URL, date, author, etc into Proveit.
Counter-vandalism
N.B. I encourage vandal fighters to tick "Hide my edits from watchlist" in the "Watchlist" section in your preferences. This will allow you to better monitor recent changes.