past 1 month my keywords are down.i cant able to bring that to same position.any new algorithm updated?
As far as I know the search engine algorithms are always changing, so it's likely that you'll see fluctuation in placements. Are you using the keyword tracker on dp to monitor position changes?
same problem i am facing from past few days, my keywords are fluctuating from first page to third page many times in a day is it Google dance happening?
Keywords ranking is affected due to google's latest update named google penguin which is against over optimization,so for improving keywords ranking include good quality content in your site and update site with fresh content regularly.