goodroi - 3:04 pm on Feb 21, 2011 (gmt 0)
Are your 10 blogs being hosted on wordpress.com or do you have your own hosting?
Robots.txt is a simple text file. It is also a very important text file. One misplaced character can have a big impact of your site. I do not normally suggest that novice webmasters make many changes to robots.txt.