After the Penguin update, my website's rankings went from top 10 to literally out of the top 1000. I've tried hiring SEO services and changed some of the on-site SEO, but the rankings would not go back up. I was thinking of re-creating a new website (it's a real business/service-based site). However, my domain was roughly 5 years old and the name matches the name of my business. If I simply buy an aged domain, will it retain the effects of an aged domain and help the SEO out (rather than buying a completely new domain)? Or what would be my best approach?