That strange summer phenomenon of Sporadic E has brightened up a wet summer in the UK so far. There have been some excellent Sporadic E FM catches from hundreds of miles away and on a regular basis too. See the British DX Club's Communication and the Beyond the Horizon column which had 8 pages of SpE logs this month. www.bdxc.org.uk
Here's an article from Radio Berlin International's DX club bulletin in 1986 on Sporadic E.