At http://tallbloke.wordpress.com/2014/07/31/a-busy-week-for-moon-theories/ … opens by reporting on new research that claims the Moon's core is surrounded by liquid which in turn is caused by Earth's gravity. The blog author then moves on to the report from a week or so ago that held the gravitational tug of the Earth has produced a tidal feature in the rock face of the Moon – see www.bbc.co.uk/news/science-environment-28565730
He then looks at another idea. Mile Mathis suggests that 'charge pressure' from the Earth over a long time scale has affected the shape of the Moon by flattening the Earth facing side in comparison to the much rougher and bumpier dark side of the Moon. Images seem to show a deformation, a sort of obliteration hair cut nearest the Earth. The near side crust has been almost blasted away, it goes on, and this is to be expected from a charge field – go to http://milesmathis.com/phi.html
We may also note that Gold suggested the Moon shows sign of a tidal bulge appropriate to a greater proximity to the Earth – see SIS Review III:3 page 108 and 112 where the reference appears to be Thomas Gold, Nature 175 page 526-9 (19955).