When Sims 2 came out, a ton of popular websites hosting Sims 1 CC started closing, places like Livin It Up and Simbella. Because the CC was so popular, fans hosted some of it at various "Savings the Sims" groups at Yahoo.
Unfortunately, Yahoo announced this year that all content hosted at Yahoo Groups will be deleted in December. That means that all of this great CC content will disappear. You can read more about this below, as well as get links to three of the most popular Savings the Sims TS1 CC groups:
To download this content, you'll have to sign up with Yahoo and join each group. Hurry, since this content won't be long for this world.