The greatest tool that I have used (so far) is the
Internet. The
Internet is constantly being fed a diet of contemporary information about trails, gear, and groups. It's also a good place to get pumped up for a season or just to motivate an individual to start -- as in my case. A negative is that for some, reading just doesn't "cut it", but in this day-and-age you would surely lose out on important information. Maybe the most difficult aspect of searching for information on the
Internet is that it is a search! Weeding through the ads,
web pages, web search engines and so forth, just to learn about an aspect your interested in, can be time consuming or difficult.
Now, I could include YouTube along with the Internet as a source; however, YouTube blends two forms of media - video and Internet. The great thing about YouTube is you can watch and learn. Some of us are visual learners and so it adds to the learning/information curve. Hours and hours can be filled just watching others talk about their particular passion... which you then can "catch" their enthusiasm or make you yawn... to each their own! The down-side is that most of the videos aren't necessarily the best productions and can be found lacking in some manner.
The library is a third option for free information. Magazines and info guides can be had for just getting a library card and maybe a late fee here-and-there. Late fees usually run from 10 cents to 25 cents per day which isn't a bad deal. Once you have been informed a great deal while sitting at a computer, a book can fill the minutes between activities... for example waiting for a bus to arrive or the commercials on television to end between programing.
Fourth, another great way to gain some information is to talk to others. While some people are a little weary of striking up a conversation with someone of the same species - cats and dogs have a hard time communicating the best way to set up a tarp tent for example. Your neighbor, forums online, government agencies (over the phone for example), and social groups can be found with a plethora (oh, how I love using vocabulary lists from high school) of information. Don't be surprised if you find some really good information from the less-likely people or places. Even if the only information you discover from one source is something intrinsically valuable about yourself - like others perceptions about you that weren't necessarily true or things you wish weren't true (but you know they are).
Finally, experience will be your best teacher and and guide. Take what you have learned and try to apply it. Then, when you have had an experience, evaluate your experience... this may sound rather juvenile, but often we don't take the time to process our experiences and integrate any potential lessons into our day-to-day existence. The saying, "necessity is the mother of invention", is a great example of how experience can be some of the best information we will take to the grave.... even if it doesn't come cheap.