>> irb(main):001:0> first_array = ["Databases", "Network Management", "Security"]
>> => ["Databases", "Network Management", "Security"]
>> irb(main):002:0> second_array = ["http://databases", "http://network",
>> "http://security"]
>> => ["http://databases", "http://network", "http://security"]

Sorry for the third post in a row, but this is much better done like this:

irb(main):006:0> first_array.zip(second_array).map {|(k,v)| {:name =>
k, :url => v}}
=> [{:url=>"http://databases", :name=>"Databases"},
{:url=>"http://network", :name=>"Network Management"},
{:url=>"http://security", :name=>"Security"}]

Jesus.