One of my sites ( http://www.esrilankans.com/welcome.do ) had PR 4 since now. It had one PR 6 back link, I lost that back link few days ago because back linker redesigned his site. Google says my site is still PR is 4. But its not showing up in Google results for the keywords it was at top before. Is this normal? will it be back in Google after some times. PR6 link is not the only back link it had.
Have you used any directories or blog networks for backlinks lately? as they've been hit hard by google, and now all the sites using them are getting punished.
according to my opinion these type of problems are occurred in many times. so it will come in the correct page rank in some days.
It has many back link from other sites, But the most valuable back link is PR6 which i lost. I doubt if this will affect Current PR...
Quality backlinks are permanent backlinks as if your site is down in some way then after sometimes is your site is up then backlinks provided to you will work . Same in case of you your 6 PR backlinks is currently now lost as if site is again up then your backlinks will work.
Thanks for all your comments and ideas guys, yes it was a temporary thing. I got my site back in Google. And now i'm receiving traffic again from Google...