All site content is kept in the recycle bin for 30 Days before being purged completely.
Users Access to the Recycle Bin
Standard users will be able to find the Recycle Bin on the left hand side towards the bottom of the home page as per the screen shot below.
Users Access to the Recycle Bin
Site Collection Administrators have an overview of every item which is deleted on the WSS site, to view this go to Site Actions > Site Settings > Recycle Bin.