Japanese News / Newspapers / Magazines
Nikkei Shimbun [Japanese]
Nikkei BP [Japanese]
Asia Times (on Japan)
Asahi Shimbun [Japanese]
Bloomberg on Japan [Japanese]
Financial Times (on Asia-Pacific) (Asia-Pacific markets)
Fuji News [Japanese]
Kyodo News [Japanese]
Mainichi Shimbun [Japanese]
Onlinewspapers.com (on Japan)
Reuters Int’l Markets [Japanese]
Sankei Shimbun (Japanese)
The Japan Times
Yomiuri Shimbun [Japanese]

Japan-related Blogs (in English) / News Aggregators / Other
Japan on Seeking Alpha
Japan Economy News & Blog (News and Reports on the State of Japan’s Economy)
News on Japan (Aggregator)
Gen Kanai (Varied content, good following of web trends)
JapanNewbie (Good info on culture, language learning, etc)
“from the inside, looking in” (Bilingual VC based in Japan)
Japan Focus (More of a focus on politics)
Japan Today (News, known best for Metropolis magazine ads and feature stories)

ADR Information
ADR.com
Bank of New York ADRs homepage
Citigroup ADR Information

Japan’s Stock Exchanges
Tokyo Stock Exchange (Japanese)
Osaka Securities Exchange (Japanese)
Jasdaq (Japanese)
Fukuoka Stock Exchange [Japanese]
Nagoya Stock Exchange (Japanese)
Sapporo Securities Exchange
The Tokyo Commodity Exchange [TOCOM] (Japanese)
Tokyo Financial Exchange (Japanese)

Japanese Securities Industry and Government-related Websites
Bank of Japan (Japanese)
Ministry of Finance (Japanese)
Ministry of Economy, Trade and Industry [METI] (Japanese)
Statistics Bureau (Japanese)
Japan External Trade Organization [JETRO] (Japanese)
Financial Services Agency [FSA] (Japanese)
Securities and Exchange Surveillance Commission [SESC] (Japanese)
Japan Securities Dealers Association [JSDA] (Japanese)
Japan Securities Investment Advisers Association [JSIAA] (Japanese)
Certified Public Accountants and Auditing Oversight Board [CPAAOB] (Japanese)
The Japanese Institute of Certified Public Accountants [JICPA] (Japanese)
The Investment Trusts Association (Japanese)
Nippon Keidanren (Japanese)
Mizuho Individual Investors Research & Links

Free Stocks and Market Data / Information
Big Charts: Market Diaries (U.S. exchanges’ A/D, 52-wk high/low, volume)
InsiderCow.com (U.S. stocks insider trading)
Newratings.com (Global stocks analyst ratings and coverage)
ShortSqueeze.com (U.S. stocks short interest data)
CNBC.com (CNBC Asia)
Google Finance
MSNBC.com (MSN Money Japan - Japanese language)
Reuters: Markets and Stocks (Japan: Japanese)
Bloomberg Market Data (Japan: Japanese)
Yahoo! Finance (Japanese)
Infoseek Finance [Japanese]
QUICK [Japanese]
WSJ: Market Data Center, TSE-listed stocks, N225
Bank of New York ADR Indices
Hoover’s (Corporate information, searchable by company name or ticker)
U.S. Securities and Exchange Commission (EDGAR)
Morgan Stanley: Global Strategy Bulletin, Global Economic Forum, Japan Economic Forum (JP)
Knowledge@Wharton (U. Penn’s Wharton School on-line business journal)

Magazines & Newspapers
Barron’s
Investor’s Business Daily
The Wall Street Journal (on Asia)
The Economist [on Japan]
The New York Times (Deal Book)
Red Herring
Business 2.0

Investing Blogs
Controlled Greed (Value investing with positions in Japanese stocks)
Herb Greenberg (Market Blog on MarketWatch.com)
Phil’s World (Options trader)
SeekingAlpha (Aggregator)
The Big Picture (”Macro perspective on the capital markets”)
Ticker Sense (Quantitative market analysis)

Internet / Tech / Venture websites
Engadget [Japan]
Kotaku (gaming)
Techcrunch [Japan]
VentureBeat

Japanese Language Tools
WWWJDIC (dictionary, translation)
Rikaichan (browser extension for reading Japanese characters/kanji)
Altavista’s Babel Fish Translation (Eng. > Japan., Japan. > Eng.)
SPACE ALC’s Eijiro Dictionary (Eng. > Japan., Japan. > Eng.) [Japanese]
Yahoo! Japan’s Dictionary (Eng. > Japan., Japan. > Eng.) [Japanese]
Google Translate
NHK (Japanese Lessons)
Japanese Language Proficiency Test (JLPT)
JETRO Business Japanese Proficiency Test (BJT)
MIT OpenCourseWare (search “Japanese” for various language and cultural courses from MIT)