Can I Be Aggressive in Salary Negotiations Right Now?

Dear Experts, I've managed to put off providing a salary range to a company I phone interviewed with and am currently researching salaries in my area. They seem low. Can I be aggressive in negotiating a higher raise right now, or is it too risky? What's the best way to get more $$$? Our Twitter Advice Project (T.A.P.) is no longer an active campaign. To find an answer to the above question, please use the "Search" box in the right-hand column of this website.