There are no firm guarantees as to how quickly new sites or web pages will be crawled by Google and then appear in the search index. However , following one of the four actions above, you would normally expect to be crawled within a month and then see your pages appear in the index two or three weeks afterwards. In my experience, submission via google webmaster tools is the most effective way to manage your crawl and to be crawled quickly, so I typically do this for all my clients.