Whenever possible, try to use free subscription sites first. Ancestry is a great site, but very expensive so always best to access it once you have exhausted all other sites.
is a free site requiring registration of a username name and password. It accesses ship manifests from the Ellis Island
up to 1924 and has a better search engine.........definitely register that one.
Another great site is Family Search
and more specifically Family Search Pilot
. You will be able to access quite a bit of info there, and again, it requires registration of a username and password, but is free.
There are more.. I have just started compiling some Useful Links
here. Maybe it will help.