In recent posts, I have reviewed the newsletter advisors' Top Picks from 2007, first highlighting stocks that were in the healthcare, tech, and telecom sectors and then highlighting favorites in the out-of-favor metals and energy areas.

To conclude this review, I'm turning now to the most popular sector in this year's annual Top Picks report -- financial stocks. Of particular note this year is the type of financial stocks that rose to the top of the advisors' buy lists.

In past years, it was routine to see brokerage firms and large cap consumer banks among the Top Picks. This year, only one such company was chosen; Citigroup Inc. (NYSE:C) was selected as the favorite stock of both Mark Skousen and Kelley Wright.

Outside of Citi, the advisory community looked to an area that has rarely been cited in previous Top Picks reports --specialty finance companies. For example, Gordon Pape selected Brookfield Asset Management, which provides financing to real estate ventures.

Neil George chose a pair of companies spun off from Australia's Macquarie Bank. Both the Macquarie Infrastructure Trust (NYSE:MIC) and the Macquarie Infrastructure Group (OTC:MCORF) provide financing to global road, bridge, and airport development projects.

Each year Steven Halpern, editor of TheStockAdvisors.com, surveys the leading financial newsletter advisors asking for their favorite stocks for the coming year. This article is part of his 24th annual Top Picks Report.

Gladstone Investment Corp. (NASDAQ: GAIN) is the top conservative investment idea from Adrian Day, editor of The Global Analyst. He explains, "An attractive vehicle for investors seeking above-average yield is the so-called Business Development Company.

"These are companies that lend money to small and middle-market companies, often receiving equity participation in addition to the interest on the loans. Because they do not pay tax at the corporate level, but pay out essentially all their net income to investors, yields tend to be high, and we've been successful with several previous recommendations, including Allied Capital and American Capital.

"One of the newest and most conservative is Gladstone Investment. Run by David Gladstone, who has had a multi-decade career in this industry, GAIN has been relatively cautious in investing its funds since going public in the middle of 2005. This is because of a sense that the market is overheated with either low returns or risky loans.