So, you're a beginner, just like I am. Maybe you're a better player, maybe not. I'm not all that sure, but I do believe the links I put in this post will benefit all of us; well, unless you're a pro or an advanced player.

First things first: PokerSchoolOnline. It's free, it's extensive and it's here (that is, you're on it). Go through the Courses: Basic will teach you the basics of poker every player must know. Core Course will move on to the playing itself, and this is a sort of a Basic Course 2, again something everyone must know. The Core Course is also a prerequisite for PSO Skill League tournaments.
Following the first two, there are another two courses: SNG and FLHE Course. Both are useful, even though there are some mistakes in them; for example, SNG Course has interactive videos for one example, and just beneath it an explanation for another, similiar, but a bit different example. Go through them anyway, they're good for you.
The Library and Videos section, along with the rest of the site hold some other great information, and I suggest you browse through it a bit, even though I still didn't get a chance to.

Now, we all know about YouTube. And, as expected, it's got some great videos that will teach you a lot about poker. Here are the names of some videos (and video series), rather than links:
  • Poker Strategy - Q&A with Daniel Negreanu
  • Gus Hansen Poker Lesson
  • Top 5 Poker Tells with Daniel Negreanu
  • learn to win at Texas Holdem (with Daniel Negreanu)
  • Daniel Negreanu Poker Lesson
I'm probably going to add others later after I myself watch them. Also, don't limit yourself to only those videos labeled for amateurs and beginners. I've watched a few small ball videos as well, and they've taught me a lot. I may not be able to use the technique completely, but I may be able to recognize it if someone tries to use it on me and I may be able to use certain aspects of it. In all honesty, I did use certain aspects of it when I finished 37th in the PSO Skill League.

Beside these tutorial videos, you can also watch footage from poker plays of many professionals, and I've got to recommend Daniel Negreanu, because he is so talkative he'll almost tell you what he's thinking about and how did he pull it off.

There are many articles online and a simple Google search will show you most of them. However, I have not yet read any, so I'll shut up about that now. And it's the same thing with books.

Now, the title of this post of mine includes a "when". This is actually quite simple for any student: learn when you can dedicate 100% of your attention to the subject at hand. If you cannot do it at a given time, then it's better not to, because you might miss an important advice or a hint.

Another point of when to learn is: during the game. Experience is what made those pros be that good. Not YouTube videos and not books. Sure, it helps, but it doesn't make you great; playing does. Ofcourse, don't play just by looking at your hand, you need to play by playing with your opponents as well: taking the position and odds into consideration, their and your style of play, etc. Every hand delt is a new experience, and your learning should never stop.

Also, what I find a good practice for myself is watching YouTube poker lessons before playing. It gives me a certain confidence a new fresh view of things mentioned in the lesson. It's like practicing what you've just learned, and that's always a good idea.

Well, thanks for reading!