Anything like a PDF or a website link or a podcast audio is OK for me :)
Here I am listing some useful resources for an introduction to Vipassana as taught by S. N. Goenka in the tradition of Sayagyi U Ba Khin:
Here are some links......
This answer has details and references to resources on the Mahasi Sayadaw method of vipassanā.
I also recommend Allan Wallace's podcasts, he has 40 years of experience and is a very good meditation teacher.
For example this course, Fall 2012 Shamatha, Vipashyana and the Four Applications of Mindfulness, is on vipassana.
Also, check out his books. He has written many, so I won't be specific. But try browsing him by subject and see what you like.
For me personally I've gotten a lot of direct help from people on this forum too. There are many very experienced, helpful and competent guys here.
Ven. Yuttadhammo has a book : http://static.sirimangalo.org/howto/HTM.pdf