Many bookmark sites cannot be added to IMAutomator due to the fact that they require a CAPTCHA to be filled in on the submission page – this is a dynamically generated image containing some combination of letters / numbers designed especially prevent automated submissions.
Actually they can be added – but unfortunately there is a cost associated with submission. We’re going to be adding support for a service called Decaptcher which allows these codes to be entered during a submission process like ours. But for now, we simply don’t include the sites in IMAutomator.
Most of the article directories that we use are based on a number of popular templates and it would appear that one of the templates has recently had an upgrade which places one of these CAPTCHAS on the submission page for these so we’re having to remove them also. 5 Sites were removed today but luckily we have a few more article sites on the list ready to be tested for submission next week so we should be able to get the numbers back over 50 again soon.