Leosghost - 7:40 pm on Sep 7, 2012 (gmt 0)
The reason why we use them is because of Spiders from Google can pick up on the Meta tags.
You are aware that meta tags existed before Google did ?
becomes the title in the search engine and then the description is from the meta along with the keywords.
That's incorrect, the description in SERPS does not come from the "meta description" tag..