A number of other people have made a similar journey to Liepaja to see where their ancestors lived. I just found a website created by Arturo and Marc Porzecanski about their visit to Liepaja (among other places in eastern Europe) in 2002: Our trip. The direct link to the page on Liepaja is: Our Trip to Liepaja.
Brian Friedman created the Welcome to Avaslan website about his family in eastern Europe, including Liepaja. Like me and the Porzecanskis, he found the house where his relatives in Liepaja had lived. He also has a page on the Killing Fields of Skede and photographs of the memorials there.