It does have an impact on your ranking. More than meta description tags, and meta keyword tags. However, the most important thing to rank highly on certain search terms is to have web sites link to you with those words as the anchor text.
Btw, this is for google, as I assumed that is the search engine you are concerned with.
A Collection of Web Hosts
Small biographies on hosts, uptime reports and some reviews
Feel free to add your review or add a host that isn't on the list.
The title of a website is, according to Google, the first tag that matters. It gives you the first look on every search engine. Also, it's a known fact that the the title should also contain at least one of your keywords.