The euro fell against the U.S. dollar yesterday, pushing it back down close to a four-year low against the greenback. Sovereign debt woes were the old news behind past trends, and Thursday's declines were driven by upbeat U.S. economic reports and optimism over tomorrow's unemployment data contrasted with some lackluster euro zone data.

When you look at the broader stock market, the little guys often get lost in the shuffle. That's because a small start-up or a penny stock can see massive income based on small innovations or an exponential increase in market share due to even minor demographic shifts or industry trends. The reality is that entrenched blue chips just don't move as fast. That can be a good thing in troubled times because it reduces risk, but it can also frustrate investors who watch speedy little companies lap them several times over.

H.J. Heinz Co. (HNZ) is known around the world for its tomato ketchup. But after posting a 5% gain year-to-date as the rest of the stock market has lost ground, and after a strong earnings report and a recent dividend increase that boost the company's dividend yield, HNZ stock is becoming well known as a great low-risk investment for income focused trading strategies.

In my book, one of the best penny stock investments can make right now is a swing trade in small cap tech stock Tower Semiconductor (TSEM). Shares of this penny stock are hovering around $1.35, and it's an investment well worth your money -- if your trading strategy favors active investing and a little more risk in your stocks.

Of the 46 Russian ADRs, the fout that are listed on major U.S. exchanges offer great growth opportunities for investors.

Finding penny stocks to buy in the tech sector can be a difficult trading strategy, but these investments can also be great ways to make money in the stock market. Aggressive technology penny stocks can deliver big profits in a hurry after just a little buying pressure. It's because of this that some of my favorite penny stocks to buy right now are tech picks including ChipMos Technologies (IMOS), iGo Inc. (IGOI), Newtek Business Services (NEWT) and Tower Semiconductor (TSEM) among others.

An endless see-saw of mortgage default news and the continued worries over sovereign debt in the euro zone have many investors afraid of financial stocks and bank investments right now. But if you do your homework, there a number of opportunities in the sector become clear -- particularly among financials in Latin America.

Investment in banks and financial stocks changes quickly, but let me take the guesswork out of investing for this week with 12 hot financial stocks to buy and 12 stocks to sell that are "dogs with fleas." Among the favorites on my list the best stocks to buy are emerging market bank stocks like BanColombia S.A. (CIB) and regional banks like First Citizens Bancshares Inc.(FCNCA) and Signature Bank (SBNY). Stocks to sell include Netherlands bank ING Groep N.V. (ING) and Switzerland's Credit Suisse (CS), along with U.S. investment banks Charles Schwab (SCHW) and Northern Trust (NTRS).

Among BRIC funds, Brazil investments may offer greater returns than China, India and Russia. Find out what makes this Latin American nation the current leader in BRIC investments now – and for the foreseeable future.

Brazil's emerging market may prove to be a great BRIC investment. Find the latest information on BRIC funds and learn why Brazil investments are currently more compelling than those in Russia, India and China.

Among the best investments to buy now in China are a number of high yield dividend stocks. These include crude oil, natural gas and coal energy stocks such as Yazhou Coal Mining Co. Ltd. (YZC), CNOOC Ltd. (CEO), PetroChina Co. Ltd. (PTR) and China Petroleum & Chemical Corp. (SNP). Also in the mix are communications stocks such as China Mobile Limited (CHL), City Telecom (H.K.) Limited (CTEL) and Giant Interactive Group, Inc. (GA). Rounding out the list is the China rail stock Guangshen Railway Co. Ltd. (GSH) and health care stock China Medical Technologies, Inc (CMED).

Now that much of the agenda and risk is already out on the table with health care reforms, the healthcare sector is starting to look like a viable investment opportunity. And lest you think it's just for biotech stocks and insurance giants, let me remind you that there are some great dividend stocks to be had here – and one of my favorites is Medical Facilities Corporation (MFCSF). The stock currently has a dividend yield north of 10%!

Both traders and longer-term investors should look at Cypress Semiconductor Corporation (NASDAQ: CY), which has been in a bull market for years.

Yamana Gold Inc. (NYSE: AUY) made a high-volume break, and then quickly reversed to just under its breakout point where it is a strong buy.