An overview into the way search engines operate. How your website is crawled. About the search engine bots and search spiders.
Want to learn more about search engine optimisation (SEO)? Read this blog post I made about SEO which covers a general insight into SEO. From why your business needs SEO and a brief introduction into what is actually involved.
Link exchanging is an old method that did have its place and did provide some value. That was many many years ago and now I would not suggest link exchanging what so ever. Avoid reciprocal link building at all costs.