Yahoo will shut down several of its online properties including book-marking web service Delicious, community news site Yahoo Buzz and search engine AltaVista, Yahoo revealed on a presentation slide on Twitter on Thursday.
Other services such as top ten list site Yahoo Picks, search engine AlltheWeb.com, Yahoo Bookmarks and blog network MyBlogLog are also likely to be closed down soon.
MyBlogLog founder Eric Marcoullier posted the slide on Twitter.
As part of its organisational streamlining, Yahoo is cutting investment in underperforming products to focus on its core strengths.
The search company also confirmed that it does plan to shut down some products such as Yahoo Buzz and its Traffic APIs soon.
The news comes a day after the company cut its staff strength by 600 employees - or 4 per cent of its workforce.