Tip 5: Blogs and SEO - Frequent Updates
The more you post, the more food for the spider, which can cause the spider to react by splitting up its job into several visits, whereupon you have even more content, and so on, until the spider just adds you to a more frequent schedule of returns.
For example, my main site gets spidered several times daily by Google, and yet I can go a week without an update with no change in spider visits. This means my pages get indexed more often and my new pages show up faster. Think of what that could do for the launch of your next product.