google ups and downs

Having enjoyed good success in the SERPS - i discovered today that my google ranking has dropped suddenly on my index page. It seems to have occurred at the same time as there being hosting problems with surftown. I have fired off an email asking what has happened, but this is very frustrating as my hard work has been undone... i guess i will have to wait before my domain is trusted again. Maybe i should get back on with link building again after having taken a bit of a break...