For information about the Internet and the various types of Internet services, see:
Harrison, Mark, The USENET Handbook, O'Reilly & Associates, Sebastopol, CA, 1995.
Krol, Ed, The Whole Internet User's Guide & Catalog, second edition, O'Reilly & Associates, Sebastopol, CA, 1994.
Liu, Cricket, Jerry Peek, Russ Jones, Bryan Buss, and Adrian Nye, Managing Internet Information Services, O'Reilly & Associates, Sebastopol, CA, 1994.
Musciano, Chuck and Bill Kennedy, HTML: The Definitive Guide, O'Reilly & Associates, Sebastopol, CA, 1996.
Niederst, Jennifer with Edie Freedman, Designing for the Web: Getting Started in a New Medium, O'Reilly & Associates, Sebastopol, CA, 1996.
The Web itself is crammed full of information about creating and using inline graphics (try performing a Web search using the key phrase "Web graphics"). The following Web resources contain very good information on Web page graphics, but they are by no means the only available sources:
A complete Web page construction tutorial courtesy of the Maricopa Center for Learning and Instruction. Tutorial 7 contains the inline graphics information.
Links to many useful Web pages for HTML development.
Contains a nice section on inline images.
Information on advanced features of Web graphics.
An introduction to MIME.
Links to numerous icon and bitmap archives. All suitable for use as Web graphics.
A terrific source of information for using GIF files to store Web page graphics.
More info on transparent GIFs and GIF software tools.
Frequently asked questions about inline images on the Web.
Tom Boutell's excellent FAQ on the World Wide Web.
More info on transparent GIFs and how to create them.
Information on file formats used on the Web.