A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

A proprietary open wireless technology standard for exchanging data over short distances. Used by the NXT for communication between the programmable brick and a PC or Mobile device.
53 questions
The original LEGO Mindstorms Programmable Brick. Use this tag if your question specifically relates to Mindstorms Robotics Invention System 1.0, 1.5 or 2.0.
52 questions
What's the best way to clean your bricks? What's the best way to care for them? These sorts of questions and more should be tagged with this tag.
52 questions
LEGO City groups a number of sub-themes into one: Construction, Fire, Police, Space Centre, Trains and Transportation all combine with general city life.
48 questions
BrickLink is an e-commerce site that allows registered users to buy/sell/auction parts, sets, and other LEGO related items.
48 questions
Used for old vintage LEGO sets and pieces.
47 questions
Questions concerning the modification or customization of Lego parts.
44 questions
Techniques and tips for using special elements.
43 questions
LEGO® bricks are measured in a variety of ways. How to create or fill a space of a particular size is a common building concern.
42 questions
Not sure where you should keep your bricks? If you need to separate them first?
41 questions
Not sure what a MOC is? Wondering if you're an AFOL? If someone's mentioned a term and you don't know what it means, ask away!
39 questions
Any type of components or tools not directly endorsed by LEGO or it's affiliates.
38 questions
The majority of LEGO elements are made out of ABS (acrylonitrile butadiene styrene)
37 questions
Anything related to robots; automated machines that can execute specific tasks with little or no human intervention and often with speed and precision.
37 questions
Questions related to cars, trucks, planes, ships, motorcycles, and other forms of transport.
35 questions
Questions about the LEGO product line Bionicles which is a story-based character-focused building theme with science fiction elements.
34 questions
Circular objects that revolve around axles. This tag typically refers to the wheels used for vehicles.
33 questions
Is it more efficient to colour code your LEGO bricks or sort them by shape? What are the best combinations of elements if you've not got enough boxes for each type?
30 questions
Databases that hold records on LEGO sets. In some cases other products such as clothing and merchandise is also included.
29 questions
Not eXactly C, or NXC, is a high-level programming language for the Lego Mindstorms NXT.
28 questions
Questions about battery powered LEGO systems, models and its elements.
28 questions
Adhesive labels that can be used to provide additional detail to models. Not to be confused with 'decorated bricks' which are bricks that have the details printed directly onto the surface.
27 questions
2D & 3D Computer Aided Design (CAD)
25 questions
Lego Education or Dacta sets are specifically designed to follow a school's curriculum and are sold almost exclusively to the education sector.
25 questions
LEGO Boost is a robotic system aimed at children between 7 and 12.
25 questions
24 questions
A way to join LEGO parts permanently, so they can't be separated ever again. Which is as horrible as it sounds.
24 questions
Questions regarding the monetary value of LEGO sets/pieces/products.
23 questions
Questions about the labeling, packaging, and processing of building sets
23 questions
Pick-a-Brick at lego.com or retail stores
23 questions
Separating bricks? Cleaning parts? What should you use to do this without damaging your elements. This can also cover software tools used for cataloguing or designing.
23 questions
Questions about the freeware LDraw 3D design program.
23 questions
For question regarding the the different ways pieces can be connected to each other.
22 questions
NXT-G is a graphical programming environment that comes bundled with the NXT.
22 questions
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