how is it works? i got web site - limo chicago is any chicago web site is related to my website? is any limo web site is related to my website? is any auto web site is related to my website? is any chicago web site links are weaker than links from limo chicago web sites? is any limo web site links are weaker than links from limo chicago web sites? are links PR 0 from related website [for example limo new york] are stronger than links PR 6 from not related websites [for example website design]?