Google does not use META tags, I am guessing that you must have many sites, and link them all to each other (ie: site 2 & 3 have links on site 1, site 1 & 2 have links on site 3, etc)
to have your domain come up #1 on a search for the domains name is not unusual, however the 2,317 unique visitors today is.
I presume you are not complaining
