Questions 26-28 are based on the following text.
 

    Online social networking includes much more than Facebook and Twitter. It is any online use of technology to connect people, enable them to collaborate with each other, and form virtual communities. Social networking sites may allow visitors to send e-mails, post comments, build web content, and take part in live chats.

    Social networking has quickly transformed how people of all ages work, play and shop - and even how we elect presidents. A 2010 Pew Study illustrates that it has become an integral part of the world beyond K- 1 2 schools. In the two years prior to the study, its use among Millennias (age 1 8 to 33) rose from 67 percent to 83 percent, every generation 45 and older more than doubled its participation, and adults 74 and older quadruple their participation (from 4 percent to 1 6 percent). Among students surveyed in a National School Boards association study, 96 percent of those with online access reported using social networking, and half said they use it to discuss schoolwork.

    Survey research confirms that interest in harnessing social networking for educational purposes is high. As reported in School Principals and Social Networking in Education: Practices, Policies, and Realities in 2010, a national survey of 1,200 principals, teachers and librarians found that most agreed that social networking sites can help educators share information and resources, create professional learning communities, and improve school wide communications with students and staff. Those who had used social networks were more positive about potential benefits than those who had not. In an online discussion with 12 of the principals surveyed, most said that social networking and online collaboration tools would make a substantive change in students' educational experience. They also said these tools could improve student motivation and engagement, help students develop a more social/collaborative view of learning, and create a connection to real-life learning.

(adapted from https://www.districministration.com/article/social-networking-tool-student-and-teacher-learning)

Based on the passage, the word harnessing in paragraph 3 means ...