Everyone learns during the process. Develop help sheets that you can give teachers and students. They are good for reference and non-threatening. Several of them are also n the staff development section of our school's web site. Involve other teachers in instruction.
Teachers like to learn from other classroom teachers.
Two Linworth publications are very useful resources. Internet for Schools, 2nd edition by Carol Simpson and Sharron L. McElmeel and Searching Electronic Resources by Marjorie Pappas are useful for their overviews and transparency masters. If you can, use staff development money or regular substitute money to fund classes held during the school day. It's a wise use of money with a high rate of return. Make staff development a top priority.