i have a site that has pr of 5. i have refreshed content but Googlebot doesnt seem to be coming in to re-cache it. My cache was on May 18th, I made changes on the 20th, today is the 27th. I have seen other sites in my keyword category who been cached already. is this casue for concern or should i just wait it out.
Wait it out. Google's Data Centers are currently not showing PageRank neither.
Depending on your area, your cache should once again be visible. If not, don't worry, wait it out.
Hopefully the next Google update is coming up.