Seen a lot of reports from people in various threads about new sites not being indexed and new pages on older sites not being indexed either.
I thought it might help to list the things that have been tried and failed with some of my sites experiencing this problem so you don't waste your time. Each point is a different site that I tried a different approach with:
1. I entered a new site in to Google WMT. After 3 weeks, still not included.
2. I really pushed getting quality backlinks for a new site. After 2 months and 200+ backlinks created (PR0-PR6 linking pages) still not included.
3. For an existing site where new pages are not being indexed, I made a URl removal request in Google WMT for 3 of the new pages that had not been picked up for more than a month. Then, once "removed" ;) I clicked the "re-include" button ... hey, it was worth a shot!
4. I bought Adwords ads for an existing site where new content was not being indexed. After 2 weeks, still nothing.
5. I placed Adsense advertising sitewide on a new site - 5 weeks have gone by and still not indexed despite 100+ visitors per day from other sources.
This problem is confusing me as I can't work out why these sites/pages are not being included. I have half a dozen sites where new content gets indexed within minutes! (Not forums either!)
It's a handful of sites this is affecting out of the dozens I managed/create and I can't find the connection.
I designed and launched 3 sites so far this month. 2 have been fully indexed within 48 hours the third has not ... and I have no idea why.