Tech start-ups, as usual, had a good week when it came to securing funding. Read 'em and weep:

-JumpTap, a mobile search and advertising start-up, raised $26 million in Series D funding this week, bringing their total investment to $72 million. The company specializes in creating mobile advertisements for cell phones, and is working on plans to create search that is specific to mobile. JumpTap intends to use the cash to develop more products, hire more sales employees, and to expand its service abroad.

-MIOX, a New Mexico-based company, secured $19 million in third round funding this week. The start-up develops water purification devices for both individual and commercial use that are cheap and green. So far the company has raised a total of nearly $50 million in VC investment, including the new sum.

-Brand.net, which sounds exactly like what it is, is an online advertising business focused on—wait for it—brand advertising! There must be something to it though, because the company closed $10 million in second round funding this week. They say they'll use the funding to "accelerate its growth in the online brand advertising industry," which is business speak for "we haven't quite figured it out yet."

-Content delivery network Panther Express scored $15.75 million in second round funding this week. The start-up specifically uses proprietary technology that it sells to businesses to deliver content to their customers. Panther will use the money to go international.

-Expand Networks, a WAN optimization company, says that they've secured $8.5 million in VC funding from Intel Capital. The start-up has raised more than $50 million to date, but says that they'll put this new influx of cash toward R&D and to buy new technology. Er, we thought they were supposed to make it?