Family Involvment

Involving the family in their students education is one of my top priorities. I have been struggling at my school with this.  I have tried to keep communications open and regular with the parents, but only a few choose to respond.  We have sent recommendations home about how to help students read and enjoy at home, but few return the logs.  I have personally made flash cards and vocabulary cards for them to read and have fun with at home, but many don't use them.  It is very frustrating when a child is struggling and you have no help at home.  When we have a book report that is due at the end of the nine weeks, many have to do it at school or don't do it because they get no help at home.  Homework is turned in by less that 50% of the students.  I try and call parents at home to give suggestions of how they can work with their child, but only a few are involved.  I think this is sad because so many of these students could learn so much more if their parents would be involved with their learning.  A lot of these parents think that learning is only done at school and they should do all work at school.  This is why we are struggling as teachers because there is lack of support.  Is there anything else we could do?  I am open to many other suggestions.