Please read the whole thing.
If you ever are interested in supporting Israel by doing something financial, I highly recommend making a donation to ALEH, Shalva or Keren Malki. These are outstanding Israeli organizations for special needs kids and adults and they serve everyone regardless of religion.
I have personal experience with ALEH so I can vouch for the truly righteous work that they do, having seen it with my own eyes.
Otherwise, Beit Halochem does great things as well for injured soldiers.
The best thing, of course, is to go to Israel and put money directly into the Israeli economy but I know that is a big investment and not everyone can do so.
Another thing you can do to support Israel is buying Israeli products.
There are lots of on-line stores that ship amazing Israeli products right to your door if you are in America.
Israeli wines are really excellent as well.