help wheres my site gone

A few months back i started playing with a little site (cheapdinners and then couk) not trying to be cryptic but i haven't enough post to allow url's yet, the site is nothing special but i did get first page listing position 8 and in the recent pr update i was pleased to see that it for pr1

was looking today and its gone .. not the page rank the site its nowhere not even in the first 15 pages, gave up after that

still page 1 position 1 in bing

keyword = cheap dinners

any ideas? really i do need some ideas cos I'm confused

Did you add some content in it? If yes was it unique or copied?

Just to clarify, are you still indexed? Did you check with the site: search command?

yes still indexed , and content is unique, what is confusing me nothing has really changed,last article was about a month ago,and not done any sudden link building to cause a google dance
BTW no messages in webmaster tools before you ask

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