Which major US market indexes (Dow/DJIA, S&P 500, NASDAQ) include returns from reinvested dividends, and which don't?
Where can "total return" information be found for each index that doesn't include reinvested dividends?
Are the major exchange-traded funds (ETFs) corresponding to those indexes (DIA, SPY, QQQQ), plus their reinvested dividends, good enough proxies for the total returns of those indexes, when simply wanting to compare one's own portfolio performance to an index?
(Note: The above questions came up based on comments to one answer at this other question.)