New packages on CTAN in September 2009:

• latex-make - tools to simplify the compilation of LaTeX documents
• rangen - generation of random integers, rational numbers and decimal numbers
• eqexam - a LaTeX package for writing exams, tests, quizzes,
  homework assignments, etc. Though it’s a stand alone package it’s integrated with the AcroTeX eDucation Bundle.
• chklref - automatically find unused labels in LaTeX documents
• widetable - like tabularx but typesets tables of specified width by adjusting the inter column glue
• pst-abspos - a PSTricks related package providing a macro \pstPutAbs(x,y) to put any object on absolute or relative coordinates of a page
• cachepic - simplifying and automating conversion of document fragments into external EPS or PDF files
• mailmerge - provides an interface to generate text from a template where fields are replaced by actual data
• texdiff - compares two (La)TeX documents in order to create a merged version showing changes
• bracketkey - LaTeX class for producing bracketed identification keys
• drv - a set of MetaPost macros for typesetting derivation trees
• trimspaces - trim spaces around an argument or macro
• csv2latex - a Ruby script and Applescript combination allowing cut-and-paste of spreadsheet tables (e.g., from Excel, Open Office Calc, iWork Numbers, etc.) into a LaTeX file in various popular LaTeX table formats: plain tables, booktabs, longtable and raw cells
• memdesign - notes on book design, derived from the first part of the memoir users manual
• DoX - extensions to the doc package

Updates in August:

boolexpr, tex-gyre, lm, mfpic, FiXme, mathspec, epstopdf, ctantools, tablor, dox, Asymptote, bclogo, notes2bib, mattens, cachepic, cleveref, luamplib, luaotfload, luainputenc, luatextra, glossaries, BaKoMa, etextools, csquotes, expl3, pdfcomment, memoir, siunitx, biblatex, PerlTeX, biblatex-apa, zhmetrics, autolatex, linguex, biblatex-chem, umthesis, trimspaces, ctable, pdfbook, footmisc, version, mk, vpp, answers, prerex, biblatex-chem, xeCJK, cwpuzzle, ctex, l2tabu, ifplatform, sam2p, latex2e-help-texinfo, Context, collref, oberdiek bundle, tablenotes, xpackages, xltxtra, softmaker-freefont, epspdfconversion, achemso, listings-ext. For package-specific information visit the package folder on CTAN.