Diagnose is a portable vector editor designed for drawing various types of diagrams. It supports features common for this type of application: it allows you to draw lines, arrows, rectangles, and polygons, and it allows you to group them together, and so on. Moreover, it allows you to include snippets of the LaTeX code into the diagram. This means that you can use LaTeX to typeset formulas, paragraphs of text, etc.
Newfangle is a literate programming technique for LyX (or LaTeX) inspired by notangle. It comes in two parts. The weave part that produces the formatted document is implemented entirely in LaTeX, and the tangle that generates the source code is implemented in awk for portability. Naturally, newfangle is written using literate programming techniques, using itself, and so the source is also the documentation. The source is written using the LyX document editor, an excellent front end to LaTeX. LyX is not required, but newfangle provides formatting support for LyX. Literate programming makes you write good code, because if you can't write a good justification or explanation for your code, it makes you think again and write something that you can explain.
TaylorType is a program that speeds up the creation of LaTeX documents. It will compile any LaTeX document you give it with a single click. The emphasis is on a very lightweight and simple GUI. The only interaction happens in the system tray, with two file selectors and a checkbox.
This program is especially useful when the main difference between the two LaTeX files is in permutation of sections, moved equations, etc. Given 2 LaTeX files, it prepares 2 annotated LaTeX files showing which equations of the 1st file are identical, or close, or similar, to which equations of the 2nd file. It does the same with the pieces of text. It also saves the snippets of text and equations from each text into separate files in 2 new folders, allowing the user to see the difference using a diff program.
TikZ-dependency allows you to draw dependency graphs in LaTeX documents with little or no effort. The package has a very easy to learn, high level interface that can be used to draw simple dependency trees, complex non projective graphs, bubble parses, and in general any kind of graph that is based on a sequence of nodes and edges among these. It is based on PGF/TikZ and can be used either with latex or pdflatex. It comes with very comprehensive documentation that will get you started in 10 minutes, even without any prior knowledge of TikZ. It also provides a lot of styling facilities to let you personalize the look and feel of the graphs.
WorkingWiki is a software extension for MediaWiki that makes a wiki into a powerful environment for collaborating on publication-quality manuscripts and software projects. The WorkingWiki extension allows you to store "source files" in your wiki and develop, test, run, and publish them easily. Examples include a project of five LaTeX files and six EPS images that compile together into a single PDF file, or an R script that includes two other R source files and produces a CSV data file and several EPS figures. The WorkingWiki extension keeps track of when the source files have changed and when to redo the processing to update the output, and how to display the various file formats involved. The output files and images can be displayed in wiki pages along with the source code, and can be used as inputs to further computations.
Theorem Linker is a program used to visualize references between theorems in a paper written using LaTeX. Using a .tex document (and a .aux file, created by the LaTeX compiler), Theorem Linker will search through a paper, find theorems, and find references to other theorems within a theorem's "proof". It will then create a digraph in a .dot file (to be opened with programs such as Graphviz or OmniGraffle) that will display each theorem as a node, with directed edges to describe the relations between the theorems. A path highlighted in red describes the longest path in the graph. Theorem Linker will also create folders containing graphs to individually show relations of each theorem in a paper.