I didn't figure that you were claiming copyright over any one else's material. I just wasn't sure that removal after the fact was sufficient to avoid legal troubles for "reproducing" their works without permission.
I expect that the vast majority of the content producers will be pleased to see their works live on. I admit to not having checked out the site itself: are you going to provide them means to keep the pages updated, as well? Under similar terms to their Geocities pages.. whatever those were?