Robert_Charlton - 9:19 pm on Aug 2, 2011 (gmt 0)

Nothing judgemental here... just trying to narrow down the problem and see where Google is on this....

- Does each site have a strong, independent backlink profile?

- Do the sites have link sources in common?

- Do the interlinks supply a substantial portion of the target site's link juice?

- Do the links contain targeted anchor text?

- Do the domains share common or related hosting?