Blake was born in a small town in Outback Queensland, Australia. She graduated from St Peters Lutheran College in Brisbane, duxing Theatre. She earned her bachelor's degree from the University of Queensland, with a double English major.

Blake has tutored in English and mathematics, worked in fashion retail, and was a cheerleader for both the Brisbane Broncos football team and the Gold Coast Rollers basketball teams. She was a contracted dancer on The Footy Show for Channel Nine in Brisbane. For two years, she was the secretary of the Queensland branch of the Australian Cinematographers Society.

After marrying her husband in Las Vegas in 2000, Ally moved to Melbourne. In 2007 her first child, Bridget, was born.

In 2003, Ally's first romance novel, The Wedding Wish, was published by Harlequin Mills & Boon. This book was nominated by industry magazine Romantic Times as Best First Series Romance of 2004. Since that time she has sold 16 novels, both for the Harlequin Romance and Modern Heat imprints. In 2007 she was nominated for the reader judged HOLT (Honoring Outstanding Literary Talent) Medallion for Best Traditional Romance published in 2006.

Ally has now sold over one million books worldwide in over twenty-five countries. She has taken courses at public libraries and romance writing conventions and has appeared in the print media and on A Current Affair. She also designs romance author websites including those for award winners Liz Fielding, Lucy Gordon and Trish Wylie as well as her own

Harlequin Romances

• Hired: The Boss's Bride ~ October 2008
• Falling for the Rebel Heir ~ March 2008
• Millionaire To The Rescue ~ October 2007
• Billionaire On Her Doorstep ~ June 2007
• Meant-To-Be Mother ~ January 2007
• Wanted: Outback Wife (Miniseries: Brides of Bella Lucia) ~ October 2006
• A Father In The Making ~ April 2006
• The Shock Engagement (Miniseries: Office Gossip) ~ November 2005
• Marriage Make-Over ~ January 2005
• Marriage Material ~ June 2004
• The Wedding Wish ~ December 2003

Silhouette Romances

• A Mother For His Daughter ~ December 2006
• How To Marry A A Billionaire ~ November 2006

Modern Heat (aka Modern Extra Sensual Romances)

• The Magnate's Indecent Proposal ~ May 2008
• Steamy Surrender ~ September 2007
• Getting Down To Business ~ April 2007

Other

• Sizzle, Seduce & Simmer ~ November 2007
• The Barrackers Are Shouting (by fans of the Collingwood Football Club)