Gay Ad Network launches

[Update: See below. This is not owned by Adify, as we’d originally implied]

Tenaxis closes up $5M for surgical sealants

Mountain View, Calif.-based Tenaxis Medical, a developer of glues and sealants for closing surgical incisions, raised $5 million in a second funding round. See our story in today’s daily briefing at VentureBeat Life Sciences.

Collinear raises $3.1M for TV and projection technology

Collinear Corp., a Santa Clara, Calif. company developing high-power RGB illumination (see definition) based on semiconductor lasers and non-linear optical technology, has raised $3.1 million in a second round of funding.

SunEthanol, latest cellulosic ethanol company, raises round

SunEthanol, an Amherst, Mass. biofuels technology company, said it has raised a first round of funding to commercialize the so-called “Q Microbe,” a natural bacteria that helps convert cellulose into ethanol.

Secretive Altarock latest to join rush to geothermal

A secretive Seattle geothermal technology company called Altarock Energy has raised $4 million in a first round of venture backing from high-profile Silicon Valley investors, the latest in dash by investors to tap into the earth’s heat to generate electricity.

DietTV bulks up with a $2 million investment

In the latest effort by investors hungry to exploit lucrative niches in online advertising, New York City’s DietTV , a social network for dieters, has raised $2 million.