Mine their websites for information.
Search local and regional news sources (see, below)
Nonprofits: Try and find their 990s (instead of 10Ks). Check websites that evaluate them such as:
National Charity Reports Better Business Bureau Reports on major charitable organizations.
Set up a Google Alert on your person, business or nonprofit to monitor the media.
Also try searching: online dating (more broad)
Variety of keywords: Volunteering, Student Engagement, Service Learning, Civic Engagement, Community Engagement
Journals: search the following journals for: celebrity
Film & TV Celebrities (ex. Jennifer Lopez)
Sports Celebrities (search by name, ex. Tom Brady)
Music Celebrities (search by name, ex. Kanye)
Polls: especially useful for political candidates, political consultants
Market data: not available via the library but used in the industry
Web tools: some websites rank trends