Yellow and Red Alert

Yellow Alert

The following sites have switched to maintenance mode for quite a while now (which is a bad sign):

www.abcbux.net
www.adriaclix.com
www.buxerion.com
www.donsbux.com
www.hotterthanhotbux.com
www.maniac-ptc.com
www.mightyclix.com
www.niyoms.com
www.paidforjobs.com
www.phd-bux.com
www.phd-clix.com
www.phd-gold.com
www.phibux.com
www.richptcbux.com
www.showmethebux.com
www.swissbux.net
www.trance-bux.com

Red Alert

And these have their domain name permanently or temporarily suspended (usually last level before stopping operations completely):

www.buxfund.com
www.buxlasting.com
www.buxseo.com
www.clixfund.com
www.escobux.com
www.fasterpaid.com
www.faster-paid.com
www.g20clix.com
www.genuinehits.com
www.highlifebux.com
www.inboxbux.com
www.incensebux.com
www.impressbux.com
www.kundenadresse24.com
www.lunarlandbux.com
www.morningstarbux.com
www.nbbux.com
www.onethousandbux.com
www.profit2clicks.com
www.ranthemptc.com
www.showmethebux.com
www.suprabux.com
www.thesecretbux.com
www.viavaibux.com
www.xcentbux.com
www.xtmbux.com
www.yimbux.net
www.zafirbux.com
www.zorbux.com