Because no-one has a Happy Monday unless you spent your weekend being Bez.

Want to gain some links very quickly? every SEO does silly....

• Setup Google Webmaster Tools on your domain upload an XML sitemap
• Wait to be re-crawled.
  
• Click on "not found" under "crawl errors" in your dashboard.

• Here you have a list of 404'ed URLs which are have links pointing to them.
  
• Download the list of URLs as a .csv
• Implement a 301 redirect from these URLs to your root domain.

Hey presto you've gained a few backlinks.