A. Online Personals    
Personal ad listings. (sites noted as "fee required" may offer some free services)

AmericanSingles - fee req'd.. meet your match, chat rooms, offline events.
Big Is Sexy - free.. meet big, beautiful women, and large men.
CasualKiss.com - free.. online personals, chat, and community.
Dateable.com - free trial.. find your match, chat, get advice, and more.
DatingClub.com - fee req'd.. search out your perfect match.
Dream Mates - free.. meet 1000's of people that fit your profile.
Friend Finder - fee req'd.. personals, articles, advice, and chat.
Kiss.com - fee req'd.. online photo personals for US and Canada.
LoveMatch.com - free.. database of single men and women actively seeking a partner.
Match.com - fee req'd.. partnered w/ AOL; photo profiles and more.
MatchDoctor.com - free.. over 70,000 active members.
Matchmaker - fee req'd.. personals sorted by location or interest.
People 2 People - free.. find the right person by ad or video.
SocialNet - free.. listings for dating, activities and professional networking.
Soulmates World - fee req'd.. find a life partner, or just someone to hangout with.
WooWho - free trial.. uk; inexhaustible pool of friends, chat online or meet in person.