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Another very good blog. Excellent book reviews, rich thoughts, and other good tidbits. Very nicely designed site too.

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Justin Taylor's blog. Has lots of good book reviews and other rich, thought-provoking stuff.

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CJ's blog - always a great read.

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Has many, many articles and books from the reformed and puritan traditions. You could spend weeks browsing around here!

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Ministry of Mark Dever. Many excellent church resources here.
Especially geared towards helping improve the spriritual health of churches.