PoliticalCartoons.com is a great research source. There, you can browse the work of hundreds of editorial cartoonists from the U.S. and around the world.

If you're interested in doing a research paper about editorial cartoons, but not sure how to narrow your topic, this directory from Google.com is sure to give you plenty of good ideas.

"A Brief History of Political Cartoons," a hyperlinked essay, offers you a chance to put this topic into a broad historical perspective.

Are you interested in doing some research about advertising but you've found the topic unmanageably large? Take a look at this directory about advertising from Google.com and you'll find plenty of ways to zero in on a manageable approach.

The website Analysis of Advertisements discusses both semiotic and content-based approaches as ways to study ads. It's well worth a look.

Take a look at the homepage of Advertising Age. This site is a good research tool, with news, articles, links, and a multimedia "Top TV Spots of the Week" page.

This is the homepage of The New Yorker's cartoon bank, where you can search their marvelous collection by keyword, artist, caption, and even ID number, if you happen to have one handy.

Have you ever wondered if the Library of Congress collects comics? It does! Click here to read more about it.

Thinking of doing a research paper on cartoons? The organizers of the Media History Project at the University of Minnesota have put together this helpful collection of links to get you going.

Here are some outstanding online news photograph sources:

This is the daily top news stories page from Yahoo.com, with links to photos in entertainment, sports, science, lifestyle, politics, and more.

Here, you'll find the homepage of the AP photo archive, with about 700,000 photos for you to browse through.

Finally, the homepage of the New York Daily News photo archive has about 2,000,000 pictures to look at.