Baumgarten C.: Chirping for Charity: How U.S. Nonprofit Organizations Are Using Twitter to Foster Dialogic Communication. "The Elon Journal of Undergraduate Research in Communications", 2, 2011.

Bortree D.S., Seltzer T.: Dialogic strategies and outcomes: an analysis of environmental advocacy groups' Facebook profiles. "Public Relations Review", 35, 2009. (Crossref)

Briones R. L., Kuch B., Fisher Liu B., Jin Y.: Keeping up with the digital age: How the American Red Cross uses social media to build relationship. "Public Relations Review", 37, 2011. (Crossref)

Carboni J.L., Maxwell S.P.: Effective Social Media Engagement for Nonprofits: What Matters? "Journal of Nonprofit and Public Affairs", 1, 2015. (Crossref)

Guidry J.D., Saxton G. D., Messner M.: Tweeting Charities Perceptions, Resources, and Effective Twitter Practices for the Nonprofit Sector [in:] Waters R.D., (ed.): Public Relations in the Nonprofit Sector, Routledge, NY 2015.

Lovejoy, K., Saxton G.D.: Information, Community, and Action: How Nonprofit OrganizationsUse Social Media. Journal of Computer Mediated Communication, 17 no. 3, 2012. (Crossref)

Lovejoy K., Waters R.D., Saxton G.D.: Engaging stakeholders through Twitter: How non-profit organizations are getting more out of 140 characters or less. "Public Relations Review", 38, 2012. (Crossref)

Messner M., Jin Y., Medina-Messner V., Meganck S., Quarforth S., Norton, S.: 140 characters for better health: An exploration of the Twitter engagement of leading nonprofit organizations [in:] Al-Deen H. N., Hendricks J. A. (ed.): Social media and strategic communications. Basingstoke, UK: Palgrave Macmillan 2013. (Crossref)

Ogden T., Starita L.: Social networking and mid-size nonprofits: What's the use? Philanthropy Action, 2009. http://www.philanthropyaction.com/articles/social_ networking_and_midsize_ nonprofits_whats_the_use (1-22)

Oliński M., Szamrowski P.: Znaczenie mediów społecznościowych w funkcjonowaniu organizacji pożytku publicznego, "Zeszyty Naukowe Organizacja i Zarządzanie Politechniki Śląskiej", 114, 2018. (w druku) (Crossref)

Urbaniak, G. C., & Plous, S.: Research Randomizer, 2013, (Version 4.0) [Computer software]. Retrieved on April 22, 2016, from http://www.randomizer.org/

Waters, R. D., Burnett, E., Lamm, A., & Lucas, J.: Engaging stakeholders through social networking: How nonprofit organizations are using Facebook. Public Relations Review, 35 (2), 2009. (Crossref)

Waters R. D., Jamal J. Y.: Tweet, tweet, tweet: A content analysis of nonprofit organizations' Twitter updates. "Public Relations Review", 37 (3), 2011. (Crossref)