This is a round-up of the most popular finance links from Tip'd, the social media site for investing news, in the past week. This week's stories includes a round-up of useful investing apps for the iPhone, some great tips on Cash for Clunkers, and the skinny on the biggest stock news of the week (the MSFT/YHOO deal).

Good Deals Don't Always Pay (25 Tips)
While I am a staunch frugalite, I am not a cheapskate! Price is but one of many factors I consider when making a purchase. Like anyone else, however, I've made mistakes in the past that serve as continual reminders that good deals don't always pay! Read what people are saying about it.

10 Essential iPhone Investing Applications (23 Tips)
Investors and traders can take advantage of the usefulness and portability of these 10 iPhone apps that allow them to track portfolios, research investments, and even execute trades on the go. Check out the comments here.

Cash For Clunkers Program Is Now Available: Things To Keep In Mind When Trading In Your Gas Guzzler. (22 Tips)
The Cash For Clunkers program has been active as of July 1st, and if you have an eligible car, you can now take advantage of the program. Here are some important details about the program. Read what people are saying about it.

The Recession Is Over! No Wait, It's Not (22 Tips)
Mixed messages about the recession in Canada could hurt our recovery. Read the discussion at Tip'd.

It's Finally Official, Microsoft & Yahoo Make A Deal! (21 Tips)
As expected, Microsoft and Yahoo have finally struck a deal, one that with regulatory approval, they hope will be in place by early 2010. Is it the time to fight Google? Read what people are saying about it.

You can get more of today's hot finance stories at tipd.com. At Tip'd, the community chooses which financial stories go "hot" and appear on the homepage. The links above are those links which got "tipped" the most in the past seven days by the community members.