The huge sum will be spent on marketing purposes, in order to try and secure new users that haven't experienced its revised search services.
Ask.com is the US's fourth biggest search provider and, after shelling out $2 million to buy the brand, IAC will be spending much more to try and bridge the gap between themselves and Google, Microsoft and Yahoo!.
Speaking at the Reuters Global Technology, Media and Telecoms Summit, IAC chairman Barry Diller said: "We have a number of ways to tell people about Ask, its tools, and why it should be used (and) why you should make a change from Google.
"We'll spend this year probably, on media, close to $100 million to promote Ask."
Ask is embarking on a major advertising campaign, which includes TV promotions in the US and shock billboard plans for the UK.
According to data from audience measurement company comScore, Ask.com secured just 5.2 per cent of the web search market in the US last month.
Google led the way with a 48.3 per cent majority share, Yahoo! came second with 27.5 per cent and Microsoft ranked third with 10.9 per cent of the US audience.
Ask.com recently announced it will offer a GPS enabled mobile search application, as it continues to try and compete with market leaders Google and Yahoo!
