The Web seems to have hundreds of sites that claim to get 100s or more backlinks for your site. Two Questions: First, I can't find where any of these sites will only get "targeted" links to a variety of my keyword pages at a PR of 4 or higher. Is this asking too much? Second, do the search engines frown on many links hitting my site all at once or over a short time frame? Any suggestions/comments would be helpful!