Yes. LEGO® may still be a toy, but it clearly a toy for all ages. Here are two examples:
LEGO Architecture is clearly aimed at adults.
From one of LEGO's press releases:
With models developed in collaboration with architects, LEGO Architecture inspires future architects, engineers and designers as well as architecture fans around ...
While you could indeed manage the project with a tool like GitHub (using the Issues feature), you might be better off initially managing the tasks through a tool like Trello which allows you to create tasks and move them through various status (i.e. Planned, In Progress, Review, Complete) in a fairly simple, intuitive user interface.
An issue with managing ...
Yes there is, and the standard is not unique to trains, but rather applicable to all LEGO construction. It is called MILS (Modular Integrated Landscaping System). You can find its specification in many places, but a good resource is at L-Gauge.org, where they have many more resources and standards for the LEGO train hobby.
2021 May update
Number of LCP's is still the same - 21 (listed below). However, TLG has now included details on all of the members. You can find more information about each member on the LEGO Certified Professionals webpage.
Europe & Middle East
It's MODification, "My Own Design" is silly.
Also used quite extensively outside of the LEGO community, e.g. in gaming a MOD is altered game code you execute, either to cheat or too change graphics for fun.
So an existing set where you altered things to is a MOD.
A MOC is created from scratch.
I'll address some points from Zhaph - Ben Duguid's answer:
While you could indeed manage the project with a tool like GitHub (using the Issues feature), you might be better off initially managing the tasks through a tool like Trello which allows you to create tasks and move them through various status (i.e. Planned, In Progress, Review, Complete) in a ...
The main discussion boards for teen and adult LEGO fans are as follows:
EuroBricks Forum - this is one of the oldest and most established LEGO fan forums with a huge number of discussions going on at any given time. You can find everything here from news, to custom building, to contests.
Brickset Forum - this is the second largest LEGO forum, mostly ...
For a guy who's 20 you can ignore the age limits. LEGO used to label set with "N..99" age limits but these days that sort of humour is less appreciated. It's still true, though.
I suggest focus more on what he's interested in, and what you think he'd enjoy building. Within the LEGO Star Wars range there are quite a lot of options. If he's mostly into ...
Lighting is key for any camera, but especially for the sensors in cell phones, tablets, and inexpensive point and shoots.
If you place your LEGOs in daylight or under a bright white LED / CFL you may find your iPad will do just fine. Whereas, under normal room lighting the photos become a noisy mess.
The Modular Medieval Village Standard put together by the Rochester, NY LUG (RochLUG) provides this. It features an underlying support layer very similar to MILS:
Most modules will feature a randomized cobblestone road providing transit between structures:
Structures of various kinds can be added to the modules:
Many modules created by different people ...
According to the What is BrickCon? page, BrickCon claims to be the "longest running fan-based LEGO® convention". Its first edition took place in 2002.
Note that there are events which are older (LEGOworld in the Netherlands for example which I believe started in 2001), so I suppose BrickCon's claim is specific for conventions, and not exhibitions - although ...
LEGO has recently released a number of sets in LEGO Art series. Each set is designed to create an image which consist of multiple of tiny 1x1 round plates or 1x1 tiles and has plenty of extra parts to create one of several alternative images.
Example with Andy Warhol's Marilyn Monroe (31197)
Included pieces seen above allow you to make one of 4 iconic ...
As you indicate yourself, the best answers regarding your question and current LEGO are already given in the other post. If you are not restricted by "current LEGO", I know of two more options:
You might want to look at Nanoblocks which, while still a children's toy, has smaller bricks and a different color pallette. I don't know much about the quality of ...
First of all, there needs to be an opening for one, which typically means LEGO feels they need more Certified Professionals in a particular region.
The most-recent opening was last November and was presumably filled in December. For this most-recent one, LEGO had a posting on their website where people could apply, and they made a small announcement to fan ...
When you're correcting anyone and everyone that says "Legos" regardless of their age.
When you're editing every question and answer I post to correct Lego to LEGO. :P
When your Lego collection is worth more than your car and/or house.
When you have an entire room in your house dedicated to Lego.
When you want to show every child and parent at the PAB wall ...
I've used pretty inexpensive point and shoot digital cameras to some degree of luck. But I also use a semi decent photo editing software to fix lighting and crop the image.
On my current LEGO Church Project build I've been using my Galaxy Tab Pro's camera which has a flash and it works rather well. Better than the cameras I had been using.
But the key as ...