Arguements for Christian creationist beliefs can often be summed up with one word, "nothing". The linked site is a classic example for creatisionist to attempt to prove evolution is somehow in doubt by scientists. It pretty much just takes a bunch of quotes out of context and pins them together to form what appears to be one cohesive argument against the validity of the Theory of Evolution. The main problem with this, of course, is that these are not valid references. They are quotes taken out of context from a diverse, unrelated, outdated and very often unauthoritative sources.
Many times, they quote from reputable publications, but don't make it clear that these quotes are of quotes by the source to argue against creationism. In other words, it is creationists quoting creationists. They try to make the creationist seem as though they are scientists that is lamenting evolution.
Another trick is they quote scientists of unrelated fields. I am amazed how often an oft-handed comment by Einstein or Steven Hawkins is quoted as proof that scientists question the Theory of Evolution.
They also grab quotes from newsletters or other unvetted periodicals and present them as though they were creditably published.
So, in the end, they are just quoting a bunch of random comments in a way the becomes original research of their own, finding a conclusion that in no way is reasonable if the whole of their sources are read.