Enter BigImg.it. In short, it is an applet that can be used to have big images featured on your blog or site, in a way that is practical for everybody. From a technical point of view, this is accomplished by creating an iFrame for any image that you want to have displayed. This iFrame will come with the image cropped to the very dimensions that you have set down yourself, and with full zooming and panning capabilities.
Roughly translated into English, the above paragraph means that you can take a bulky image and have it put in a small window that visitors can zoom in and out at will, and enjoy the image to the full without having to wait an eon for it to load.
Such a service is provided for free. Simply have the URL of the image that you want to embed at hand, and furnish it when prompted to see what the hoopla is all about.
BigImg.it In Their Own Words
A big image embed applet.
Why BigImg.it It Might Be A Killer
Photo bloggers will love it – they will be allowed to display their works in all their splendor.