What a good person for running that site for free! Direct linking allowed too! (direct linking uses bandwidth, which has to be paid for). Such a generous amount of disk space and bandwidth usage is allowed per account that any limitations are unlikely to affect those who want their avatar, or other images, hosted.
The 'About' page is worth a read (link at the bottom the Homepage). The Question and Answers section mentions the following:
Quote:
Q. Is this site free?
A. Photobucket.com is currently a free service. I developed the site to provide you a service, not make money. Currently, donations have funded a good part or normal operating expenses. In the future, it is possible that I would offer a premium account to help pay for some of the costs that I am currently eating, but will still consider offering a standard free account.
In view of this I would say that, even though the service is offered for free, if you can contribute something it might help to keep this excellent service running in its present form.