Free Guestbook - Get your own free guestbook at All Them Pages. RemarQ - Search over 20,000 newsgroups about every topic imaginable. A free guestbook service that enhances your web page by letting your visitors tell you more about themselves, helping to build a community around your web page.
Users answer multiple choice questions instead of leaving comments, four banners per page.
Guestbooks - By default a relavtively plain guestbook service, although many aspects can be customized. Good integration with other related services such as a webpoll. One banner per page, no branding. Alx' Guestbook Service - Create a free, customizable guestbook for your homepage. One banner per page.