Agreed...create google sitemap ..it will help you to get deep indexing of your site and very quickly and keep adding fresh content so that google bots keep coming on your site.....cheers
If you update your content frequently and increase the crawl rate in Google webmaster tools, it should crawl alot better and faster.
Log into Google Webmaster Tools and set the crawl rate. Make sure your server can handle any increase in speed though or Google will knock your website down if it contains many pages.
This doesn't mean that number of visits will increase. This means delay between 2 http requests will be less.
The ultimate factor on how fast your site gets crawled is new content. Update your site daily and you'll see the results.
What SGBoise has said is true. If you site is constantly updated and as it progress further, it will be viewed as important.