I learned Hangul years ago from some website. It's impressively easy to learn and makes figuring out pronunciation
way easier than writing Korean in a Latin alphabet.
There's actually a great list of resources here.
http://www.reddit.com/r/korean
and more specifically here: http://www.reddit.com/r/Korean/comments/rq3th/the_ultimate_b...
Right now I'm using Ankidroid and Anki for Windows and OS X (all free and they sync with Ankiweb, Anki for iOS is some small fee) for vocabulary. There's tons of "decks" (all free) available through Anki. I'm currently grinding through the "Korean 1000 most common words" deck since it also has a vocal pronunciation for each word for me to practice against.
You have to be a little disciplined with it: for each card, listen, practice the pronunciation and then when you flip the card the for the meaning score your result honestly for the SRS system to work right. You only ever get 20 new words a day, but it adds up really fast.
Right now I do a morning session (or I break it up into two 15 minute sessions), and then in the afternoons I use Ankidroid to generate a list of words I keep forgetting to practice against. I do this every day.
I'm using this textbook at the moment. http://artsonline.monash.edu.au/korean/my-korean-1/
It's free, and I just upload it to my google play books account and read it on my tablet. I'm also entering every sentence and vocabulary word from this book into a new Anki deck so I can practice more as well as get some time learning how to type in Korean.
I don't have a Korean keyboard, so I took a screen shot of this one (http://www.branah.com/korean) and printed it out and just stick it on top of my cheapo $5 Logitech keyboard to help me. It's slow, but I'm getting steadily faster.
About once a week, I'll do an extended study session and sit down for a few hours and try to write all of the vocabulary I'm learning and what it means. This is giving me practice actually writing Hangul, which will help me later in reading people's messy handwriting. I'll probably start doing this as well to improve my handwriting since figuring out how to fit different syllables in a square is still a challenge for me. http://koreanvitamin.wordpress.com/2012/11/28/how-to-practic...
I've tried and struggled a lot with memorizing vocabulary in the past which is why I've put it off for so many years, so I can't say enough good things about Anki. If I have a criticism, it's that I'm much better now at remembering Korean->English than I am going from English->Korean. There's some decks that cover that as well though, and I'm planning on making a "1000 most common words in English to Korean" deck at some point when my Korean and typing gets better.
There's also a deck of every TOPIK vocabulary word I'm planning on moving to next. It's almost 8,000 words.
For videos, I'm not as much into those yet. But I'm planning on moving to start that in a few months to build listening comprehension. My goal is not academic/formal Korean, but more conversational/colloquial. So I'm thinking of shows like Running Man on www.dramafever.com might be good to watch, at least if you get tired studying you can be entertained.
There's also quite a few youtube channels at various levels of complexity. The people who make the videos usually put quite a bit of effort into them to make them at least entertaining.
In my queue for future studying:
https://www.youtube.com/user/talktomeinkorean
https://www.youtube.com/channel/UCg-p3lQIqmhh7gHpyaOmOiQ (he puts subtitles everywhere in Korean and English so it's super helpful to pause on each sentence and work them out)
https://www.youtube.com/user/sweetandtasty/videos - mostly English, but she provides lots of entertaining background stuff and nouns for things
- Based on my readings from other people and what to expect, I'm expecting to get up to very basic conversational level in 6-9 months and be able to handle most typical daily conversational needs somewhere between 1-2 years of study. Korean is a very hard language for English speakers to learn (as I'm finding out).