Financial Revolution has some information on Royalty Trusts.
David at Pacesetter Mortgage takes a look at the slowing pace of mortgage pre-payments.
Jeffrey at Personal Finance Advice tells us about person-to-person lending. Interesting, but there are some serious risks involved, IMO.
Retire at 30 submits an analysis of ROTH vs. Traditional (pre-tax) retirement plans.
Jose provides a lesson on how to calculate the effective after-tax interest of an investment. He even gives a spreadsheet.
As always, look around. There aren't necessarily the best ones, jut the ones that appealed to me. And your tastes are most likely different from mine.