Is it possible to get penalised for gaining too many links too fast?
Most of the new links you receive will be indexed by the search engines over the next month or two. The sites we submit to vary from PR5 to PR0. With free directories, your site is often listed on many new pages that may not get crawled for weeks. Approvals occur anywhere from the the first day to 2 months later. There is always chance that directory submissions can have negative effects but we haven’t seen this in our experience. If your site is fairly new, we would suggest not doing any advertising in the weeks that follow your submissions.