Just in time for New York’s Fashion Week, which began on Friday, AOL announced the re-launch of its style and beauty blog as a full-blown women’s fashion and style site, StyleList.com, with new content and at least one A-List advertiser.

StyleList.com will step up to very formidable competition from a slew of print-related sites such as Condé Nast’s Style.com, Time Inc.’s InStyle.com, People.com, and Elle.com along with popular newsletter site, DailyCandy.com.

The battle for ad dollars chasing the style-conscious among the more than 98 million U.S. women online has been joined, and popular women’s brands such as Elle along with VC-backed firms such as Glam Media are all in the hunt.

The number of U.S. women on the Internet surpassed males in 2006, according to eMarketer, and the gap has stayed pretty steady since then. Women online are expected to top 100 million in 2008 and the demographic will skew younger with time, according to eMarketer.

“We are all going after women who are interested in fashion and advice on what’s hot and what’s new, and how to translate that to their lives,” said Colleen Curtis, editorial director of AOL Women’s & Lifestyle Programming.

Many of StyleList.com’s competitors have the advantage of popular print brand names, but the AOL site is hoping to create completely new Internet experiences that take advantage of its parent’s sometimes-questionable tech savvy.

“We can use technology to create features that have longer shelf lives and we can update our content from events like Fashion Week,” Ms. Curtis said.

StyleList.com launched with Levi’s Brand as its most prominent advertiser. One Levi’s ad on the site was nested in a video feature titled “30 Days of Jeans,” that showed a month’s worth of jean styles.

StyleList.com, which claims more than 3.8 million unique visitors, will create much of its own content but will also use articles, reviews, and features from firms such as TotalBeauty.com and Hachette Filipacchi.