We had a web site designer on our site for six months, and noticed that our Google pages were slipping from the the top 10. Once our pages slipped past the top 20, we let him go. After going through the web pages myself, I noticed that he had put in a lot of 1 pixel gif's throughout the site, hidden links, invisible text of keyword dense paragraphs.
He also added a links page of which I'm not too thrilled about, considering those pages are not really relevant to our site except for the ones located on the first link page.
I show that our pagerank is 4, which has remained the same for the past year.
I have since gone back into the site, taken out all of the spam crap that he put in, and we have gained some ground, but not where we should be. Although, last week we did jump to the top five, and now we seemed to have slipped out of the rankings all together. I searched all the way to 150 and didn't see our site at all.
Is this going to be just a temporary slippage, or is there something I should be concerned about? Our website is http://www.usamerchantsolutions.com. If someone could check it out I would appreciate it.