[dalore]

Google pretty much ignore or place a very very low value on meta description and titles since it's so easy to game. External links, from high ranking reputable sites is where the most value is at since they are hard to game.

Example would be linking to this project page from the wikipedia page for youtube. Also the text used for links is important.

Yes google is a mind reader and it does figure what your page is about. It's actually not that hard using natural language toolkits to process the text on the page and figure it out. See http://www.nltk.org/