how can i use Multiple link_to in table_for column method?

code like this:

column(:seit){|seit| 
          %w(github google funtti).each do |ele|
            link_to ele,"http://www.#{ele}.com"
          end
  }

on my page just like this:  ["github", "google", "funtti"] it not a link i juest want to linke

so how can i run this code on my page ?
