DataViva(http://en.dataviva.info), a project developed in part by Media Lab professor César Hidalgo, aims to make a wide swath of government economic data usable with a series of visualization apps.
Lippincott Library home page (https://www.library.upenn.edu/lippincott/)
Mintel (http://hdl.library.upenn.edu/1017/13269 )
Simmons OneView (http://hdl.library.upenn.edu/1017/106498 )
eMarketer (http://hdl.library.upenn.edu/1017/6901 )
Passport GMID (http://hdl.library.upenn.edu/1017/6908 )
Market Share Reporter (http://hdl.library.upenn.edu/1017/77507 ): This is a searchable ebook that aggregates market share stats.
Business Source Complete (http://hdl.library.upenn.edu/1017/88405 ): This is primarily a database for academic, trade and news articles.
Marketresearch.com Academic (http://hdl.library.upenn.edu/1017/28431)
The Entertainment Software Association (http://www.theesa.com/ ) is also a good resource.
Five Thirty Eight – data/statistical stories about elections, politics, sports, science
This interactive map shows the distribution of schools in Pennsylvania, and provides necessary information about each school.