public static string[] GetBlogIds()
        {
            string[] blogIds = SettingsKey.GetSubSettingNames();

            for (int i = 0; i < blogIds.Length; i++)
            {
                if (!BlogIdIsValid(blogIds[i]))
                {
                    blogIds[i] = null;
                }
            }

            return((string[])ArrayHelper.Compact(blogIds));
        }