BlogAds: Blog advertising placement company.BlogAdvance: Users earn credits by surfing blogs, playing a slot machine, and clicking on ads.Blogazoo: Surfbar-based traffic exchange offers profiles, directory, and bookmarking.BlogExplosion: Offers a 2:1 ratio for viewing member blogs for thirty seconds each.Mad-Den SuperSurf: Offers free and paid traffic exchanges; free has a 4:3 ratio and paid has a 1:1 ratio. Timers are always 30 seconds.Virtual Loop: Traffic provider offers 1:1 ratio and a 20-second timer. Users can maintain a profile and participate in competitions.