Many forums and blogs don't have the capacity to store images on their own servers. Instead, posters are required to use a third-party host to share images. Many free image hosts exist, such as imagevenue, imagebam, and imageshack to serve the purposes of sharing images. However, these image hosts do not give direct links to stored images. Instead, what's given are links to html pages that encapsulate the images. If you want to save an entire gallery of images that are hosted on these image hosts, simple tools like "wget" and "downthemall" will not suffice (at least not without some serious scripting).
ImageHost Grabber (IHG) is a powerful utility that makes the task of downloading these galleries a simple task. You can think of it as IHG doing all the work of "open new link, right-click, save-as". But the functionality of IHG doesn't stop there.
IHG can automatically create the directories for you, and even prefix file names and directories so that images you download can be sorted chronologically and be sorted by the original page order. Years of research of download failure recovery has been implemented into IHG to ensure all available images are downloaded properly. If that wasn't enough, IHG can even save a session to try again later. IHG also includes a special feature for forums that will allow you to download an entire thread of images. And last, but not least, IHG uses multiple downloads to increase the download rate of the galleries.
IHG includes a host file editor so that you can implement a new image host that is not already included. Details on doing this can be found in the "Host File Manual" located on the IHG website.