In scholarship, email gives faculty the means to collaborate across institutions. Manuscripts, software, pictures, sounds recordings and more can be transmitted to distant colleagues. Developing research proposals and executing research plans now require the use of email. Most faculty use email both in the office and at home, communicating with their peers at all hours. The Web is also an essential tool for scholarship.
Search engines find previous results and important discipline specific sites are all over the Web.
In teaching, email has changed the way faculty interact with students. Unlike office hours, which are rarely used by students, email access to faculty opens up dialogs between students and faculty that did not exist previously. Email with students is a very rewarding way to extend teaching beyond the classroom. Web sites change the nature of available academic material. Unlike books, web pages need not be static.