50) Tripod Image Gallery
http://build.tripod.lycos.com/imagebrowser/photos/

Tripod Image Gallery from Lycos has over 10,000 images available for free. Images aren't limited to photos as they also have clip art and Web elements. Click on Image Index anytime to return to the Image Gallery home page to switch to the other image galleries.

The photo gallery home page consists of categories and subcategories. When you pick a subcategory, its thumbnail pages appear with just the image. Click on the image to view a larger image and to get its file size. On the image page, there is code you can copy and paste into your Web page so you don't have to download the image and then upload it to your Web page's server.

If you have an account / Web page with Lycos Tripod, you can use FreeForm or SiteBuilder to add image to your Web page. Free accounts are available and its features are explained here.

49) Amazing Textures
http://amazingtextures.com/

Amazing Textures is a collection of images and textures for personal use only per the license agreement. Textures are a great way to enhance a site or picture.Images and textures are grouped into three main categories: nature, urban and other. Currently, there are over 600 available for downloading.

Discover new textures by browsing categories, new images, top textures, or using the search tool. Every image comes with information on the date uploaded, hits, number of downloads, ratings, file size and whether or not a hi-res version is available. The site also comes with a lightbox feature so you can save your photos for later reference.

Tutorials are also available where you can get help with modeling, texturing and other general tutorials. If you can't find your answers here, you might try the forums. Amazing Textures offers a small and unique collection.

48) Picturestation
http://www.picturestation.net/start/

Picturestation is a joint project between Screengang and Distinct that has over 6000 photos in its collection. It's a photo exchange site in which photographers get two download credits for each contributed picture accepted into the collection.

Registration is required as you can't download photos without contributing, but you get 10 credits after registering. The site also accepts illustrations. The site's license agreement explains how your photos and other photos can be used.

The nice thing about the site is that it's community-driven and this leads to a diverse collection of photos. The site's features include comments, lightbox (where you save select pictures), rating and e-cards. Discover photos by browsing categories, using the search tool, or getting a random selection of photos.

47) NPS
http://www.nps.gov/yell/press/images/

National Park Service (NPS) has over 9000 images available in the public domain for use, free of charge as long as you credit the photo as "NPS Photo" or "NPS Photo by (photographer's name)". The photos are specifically related to Yellowstone National Park covering animals, fire, geology, park structures, special events and more.

According to the site's FAQ, NPS has 19,000 images and plans to continue scanning and posting those that aren't yet online. Images are neatly organized in thumbnails on their category pages along with their file names and a brief description.

When you click an image, the site loads the full size of the image and you can right-click and select "Save as..." It's a well-organized site considering there are thousands of photos with many more coming.

46) FreePhotosBank
http://www.freephotosbank.com/

FreePhotosBank free stock photo gallery grants visitors with non-exclusive, non-transferable license to use these photographic images on the terms of its agreement.

Search or browse categories to find photos or check out the newest or random photos that appear on the home page. Click on Hot List to see the most popular photos as well as photos with the highest rating, most views and most downloads. Some photos have an added digital effect so you'll find a diversity of photos you might not otherwise find on other photo sites.

Each photo comes with info regarding its size, number of views, downloads, rating, and photographer's information. You can also email the photo to a friend or print it. You can download the image in its original jpg file or as a zipped file. You'll find a quality collection with hundreds of photos.