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Twitter did not crash and the Super Bowl became the most tweeted sporting event in history, averaging more than 10,000 tweets per second.

That wasn't all that surprising: continued growth of the social network, not to mention tablet and smartphone technology that make it easier to tweet while watching television, means that record will probably be broken several times between now and next year's Super Bowl.

Twitter's sponsored tweets and sponsored hashtags are cropping up more often as the social network places a heavy focus on advertising. As with any new advertising offering, we'll learn how to use it effectively by watching the efforts of others. Advertising on a social network offers up opportunities for engagement that can't be found elsewhere, but that opportunity comes with significant risk.

Sponsored hashtags can blow up in your face, they can be stolen by a competitor and they can be surrounded by risky UGC. But they can also very quickly achieve some great attention for your brand. Choosing to advertise on Twitter is a risky move, ripe with opportunity and danger. It shouldn't be undertaken lightly or without serious thought.

The necessity of having a clear and cohesive mobile marketing strategy has never been greater. Companies that do not have a mobile marketing strategy now are light years behind the curve in the face of booming smartphone adoption and changing consumer behavior. Research firm Forrester took a look at some of the biggest and best mobile marketing companies to see how they stack up and what benefits they can add for companies.

There is a problem with Forrester's research. Mainly, it looks only at the biggest and best. It is an enterprise-focused report that narrows in on nine mobile marketing companies and the strengths behind each. Fundamentally, this is the wrong approach to take in a world where dozens of innovative startups are tackling the idea of mobile marketing with fresh ideas and eager teams.

Today, ads are something we skip. They coat everything we watch, read and listen to like a sticky film, blinking and shouting and shocking us into paying attention. Their value is measured in "impressions," how many people's eyeballs scan past them, and on the Web, a click on an ad is the holy grail. That's what passes for "engagement."

Have you ever seen an ad that made you say, "My daughter would love this ad!" Cooliris builds ad technology that elicits that response. "Our vision is to make every single pixel in the ad interactive and living," says Aneesh Karve, product manager of Cooliris' ad technology, AdJitsu. So far, it has pushed mobile and desktop ads into three dimensions, creating ads you can go into and look around. Today, it's offering a first look at "high-interaction" ads, which unlock the laws of physics in touch-controlled ads.

U.S. advertisers spend nearly $40 billion a year for online advertisements, but 31% of their ads are never seen. That means $12.4 billion will be wasted on U.S. online ads this year. That's the average across all sites; on some sites, only 7% of the ads were "in-view," meaning 93% of them went unseen.

That sounds ominous for the health of Web content. But ad spending is up by over 20% this year. Online ad spending will exceed print magazine and newspaper ads for the first time this year. So, put another way, online ads in the U.S. are still worth enough to brands to waste $12 billion a year on them. But is all this waste necessary?

Six of the leading Republican presidential candidates have spent a combined $1.4 million on online advertising so far during the 2012 election cycle.

Meanwhile, President Barack Obama's reelection campaign has already spent $5.8 million on Internet advertising - more than the campaign has spent on media consultants, broadcast, print and miscellaneous media combined, according to Federal Election Commission data compiled by the Center for Responsive Politics.

Ads are as much a part of the Web as all that other stuff next to them, such as blog posts. We've gotten used to getting much (or all) of our online content for free, so we pay with our eyeballs instead. Advertisers pay publishers for little fragments of our attention on the off-chance that some of us will notice, be intrigued, click and hopefully buy something.

It's a generalization to say that the realities of this market have driven the quality of Web experiences into the ground. But surely, you've noticed lots of annoying, flashing, animated ads bothering you to do something. Well, remember Cooliris? In October, we covered its first forays into 3D ads. Cooliris has a feeling we Web users would rather be delighted by ads than harassed. Sound too good to be true? Read on and see for yourself.

In the U.S., revenue from online advertising is up 22% from a year ago, amounting to $7.88 billion, according to the Interactive Advertising Bureau (IAB) and PricewaterhouseCoopers (PWC US). This is the eighth consecutive quarter of year-over-year growth.

The data are compiled directly from information from online advertisers, including data from websites, commercial services, free email providers and other Web properties. "Even with a softened economy, digital advertising is making tremendous gains," says PwC US partner David Silverman.

On Halloween, Google announced an initiative called "why these ads." It's a campaign to increase transparency and show users why a particular ad was targeted to them. A "why these ads?" link now appears next to some ads on Google search and Gmail. Clicking it opens a pop-up with an explanation, even though it's often nothing more than "this ad is based on your current search terms."

The pop-up also offers a link to the ads preferences manager, where users can see exactly how Google profiles them for advertising. It shows categories, which can be removed or edited, as well as your inferred age and gender. It also shows the ID of your browser cookie, which Google tracks to personalize your ads. You can also manage blocked advertisers and opt out of personalized ads altogether.

Regular users of premium video streaming site Hulu are by now familiar with the drill: After clicking the play button on a television show or movie, you're given a choice of two or three advertisements to watch. You make your selection and begin watching the latest episode of "Modern Family," which is briefly interrupted only with the ad of your choice.

For something that may seem like a relatively minor detail in the course of one's day, this Ad Swap (formerly Ad Selector) functionality is Hulu's bold, experimental bet on the future of television advertising. The idea is simple: by giving viewers some say in what ads are displayed, you can show them more relevant messages. For advertisers, the value in more effectively targeting ads toward the people most likely be interested in the company's product. Everybody wins.