comScore, Inc’s 50 most popular U.S. websites for July 2011 shows Google sites accounting for the most traffic, followed by Yahoo!, Microsoft, Facebook and AOL.

In detail, the top 50 U.S. website properties, along with their monthly estimated unique visitors for July 2011 are as follows:

Domain names appearing in pay-per-click (PPC) ads that include the same keywords as those typed in by search engine users may deliver double the number of clicks as other domain names.

In a recent study by U.K. based Memorable Domains, identical advertisements for three domains were displayed on Google Adwords. The only difference between the ads was the domain name shown.

Google may have the biggest search engine share overall, but when it comes to specific industries or verticals, Bing or Yahoo may generate a disproportionate amount of organic search traffic.

In other words, Bing or Yahoo may generate more traffic to websites in certain verticals than their overall search engine market share might otherwise suggest. Consequently, depending on your industry, lifting your Bing or Yahoo search engine rank might actually be more effective in increasing the volume of traffic to your site than a corresponding lift in your Google rank.

176 million U.S. Internet users watched online video content in May 2011 for an average of 15.9 hours per viewer, according to the comScore Video Metrix service.

The more than 8 out of 10 U.S. Internet users (83.3 percent) who watched online video, mostly did so on Google Sites (mainly YouTube.com), which attracted 147.2 million unique viewers during the month.

There are only seven (7) metrics that matter for Internet marketers, according to Geoff Ramsey and Vipin Mayar, authors of ‘Digital Impact: The Two Secrets to Online Marketing Success.’

Geoff Ramsey, CEO and co-founder of eMarketer, and Vipin Mayar, EVP of McCann Worldgroup, reckon Internet marketers need only master these 7 factors for Internet marketing success.

Where do U.S. hotels, bed and breakfasts (B & Bs) and innkeepers spend most of their marketing budgets these days? If you’re involved in the travel industry – or have recently researched or booked travel – you’ll know the answer: on the Internet!

Of the three biggest marketing expenses among accommodation businesses, the biggest expense is online advertising and the third is online travel agency commissions.

Inspectlet is a new web analytics application that records screen-captures, movies and heatmaps of visitors to your website.

Inspectlet records every mouse movement, click, scrolling, typing, and any other action a visitor performs on your site. Featuring real-time analytics, you can either watch what visitors do as they do it, or watch each movie later.

Google recently introduced Instant Pages, a new feature of its Chrome web browser that will pre-render the web page of the top search result before you visit it. In other words, after you perform a search, Google will get the web page of the first search result ready for you, before you even click on that result.

Google says it will only pre-render a web page where it has ‘very high confidence’ that it’s what a search engine user is looking for. How will Google develop such confidence? According to Google software engineer, Ziga Mahkovec:

Small businesses still have a way to go when it comes to profiting from the Internet, if a study by Newtek Business Services is any indication. According to Newtek’s poll of around 1,200 U.S. small businesses, of the 84 percent who have a website, 75 percent don’t use any tools to analyse traffic to (or on) their websites.

Around 64 percent of online small businesses say they’re happy with their web presence, yet they seem to be missing out on its potential. For example, the vast majority (73 percent) don’t accept payments on their websites.

Two recent studies indicate that around 75 percent of online retailers based in the United States are deploying video on their websites.

Firstly, the e-tailing group’s ’13th Annual Mystery Shopping Study’ reveals that nearly 75 percent s of U.S. online retailers had video on their websites in the fourth quarter of 2010 (up from 55 percent a year early).