how to travel different countries between Moscow and Amsterdam in Europa with a student budget?

I am flying out to Moscow from Houston in few weeks but i would like to travel and see some other countries while being there. I am a collage student so i am on a budget.

i am getting a multi city ticket i will land to Moscow and depart from Amsterdam and ill have lil more than a month. I have a friend in moscow where ill stay about 10 days. Then i dont really know where to go and how to go with rest of the time i have..

i would like to ask experienced people in traveling around Europa..
which countries should i visit after staying in moscow
How do i travel? take a bus, train?
How long do you guys think i should stay in Amsterdam?
and other countries which you recommend to travel

From Moscow I would take the train to St. Petersburg, then to Riga or Tallinn and fly from there to whereever there are cheap flights. Berlin would be a good choice, though there are also cheap flights directly from Moscow to Berlin.

See www.seat61.com and www.skyscanner.net

Most people stay for 4 days in Amsterdam.

When you are on a budget it makes sense to focus on Eastern Europe. Get a good guidebook like Lonely Planet, Rough Guide or Let's Go.

It is a shame that you aren't flying into Amsterdam and out of Moscow, or you could have used a City-Star Ticket bought in Bratislava for an Eastern Europe extravaganza.