The recent economic indicators prove that the American consumer is not dead. Most recently, last week a +9.1% jump in same-store sales for retail stocks fueled optimism on Wall Street.

• Consumer spending tops 2008 peak . . . really!

But what will really knock investors' socks off going forward are strong sales manifesting in the upcoming Q1 earnings reports from major retail stocks.

To get you in to the best stocks ahead of their earnings reports, here are my top two online retail stocks that I think you should purchase before their quarterly reports.

These two stocks are Amazon.com (AMZN) and Priceline.com (PCLN).

Amazon.com  started as Earth's biggest bookstore, but has rapidly become the planet's biggest anything store. Relentless expansion has propelled Amazon.com in countless directions in the quest of bigger sales and profits. The company's main Web site offers anything from books to auto parts to groceries! Shoppers can also download digital content such as games, MP3s and movies to their computers or handheld devices–including Amazon's innovative portable reader, the Kindle. Amazon’s fourth-quarter earnings leaped by over 70% thanks to strong holiday sales, and I expect another great performance when Amazon reports earnings on April 22.

• Amazon.com is just one of Louis Navellier's Top 5 Stocks for April

Another online retailer, Priceline.com, allows buyers to name their own price for everything from airline tickets to rental cars to cruises. With its patented business model, the company generates virtually all of its sales from travel-related services. In the case of airline tickets and hotel reservations, Priceline.com keeps the difference between the price paid by the individual and what Priceline.com paid for the ticket or hotel room.

• Priceline.com is one of Louis Navellier's 5 Small-Cap Stocks Taking the World By Storm

You may not think that travel spending is very high right now, but the bottom line is that value-conscious consumers really love Priceline’s ability to “haggle” on prices. This has allowed the Web site to become an oasis for cash-strapped consumers and generate huge numbers even during the recession. PCLN stock skyrocketed 9% in one day alone after fourth-quarter earnings that showed quarterly profit more than doubled and sales grew 33% over the last year. Priceline stock could perform that well again when it reports earnings on May 10.

• Is the March tetail sales jump sustainable?

So mark your calendar for these two earnings dates -- and if you're going to buy, do so ahead of time to benefit from the earnings surge.

Disclosure: As of this writing, Louis Navellier owned shares of both AMZN and PCLN in personal or client portfolios.