My advice is join a team of Realtors looking for a new team member, preferably at a large brokerage. You can hold their open homes, work on their transactions, learn from them, etc. Many agents plan to do it solo and basically end up at the office (or home) alone 40 hours a week, which is so demoralizing they end up kind of floundering. By working with a team, you keep yourself active, motivated and engaged in your business.
More experienced Realtors get many of their deals from friends and friends of friends. So getting face time at networking events can help. When you tell everyone you meet about deals you are working on, it shows you are actively in the game and ready for more work.
As far as online stuff, I recommend one YouTube video a week. There are endless subjects in real estate to talk about and since you're newer, you can focus on market trends and general info at first, as you continue to become wiser over time. Every agent has a website, color listing flyers, listing presentation and the usual stuff. Set yourself apart from the crowd. Tell clients you'll produce a video tour of their home and ask them if other Realtors they know have offered a video. A former boss and I used this strategy on a million dollar home with great success, but we also made a video of the area. Is a $600 investment worth a $30K commission?
Working with title companies is another great way to aggregate data for marketing campaigns. You could target people 90 days late on their mortgage, for example. I would avoid being a short-sale negotiator or loan modification helper, at least while you're getting started, however. There are many online sources, beyond title companies, for lists of certain classes of homeowners. Play around with it.
You could take it a step further and offer aerial footage, using drones, of properties. You don't have to own/operate the drone, you can pay someone to do that for you. While a drone-shot video might not necessarily sell the house faster, the point is it makes a great conversation point that your friends will not only remember, but will think is cool enough to tell their friends. And who doesn't want drone footage of their home?
If you want to start working with investors, consider doing little videos of local homes in your area that might be good investments. Maybe a multi that hasn't sold in a while, maybe a home that doesn't qualify for conventional financing. When investors google the home address, they find your video, and then think "Gee, this Realtor is talking about a home I think might be a good investment, they must be smart, maybe I can call them and get him/her to give me free info about the market", which is when you pick up the phone and say "Hi Mr. Investor, I'd love to work with you, let me buy you a coffee and you can tell me about your investment goals for 2017".