That links page sort of resembles a wiki. Is that how it's going to operate? People add links and descriptions to it?
A journal summary at creation would likely be wrong. Check those most popular journals. I'll bet you the owners didn't know where each would go when they created them. The index needs to be dynamic, IMO, to be most useful to people. It could appear as a special entry to the journal owner, to be updated as needed. As projects are added or dropped, the index entry could be changed. This would not interfere with the searches, but could significantly change the usefulness of the journal front page and therefore the amount of traffic.