diff --git a/updateHostsFile.py b/updateHostsFile.py
index f0ac571e5..5b3a80db5 100644
--- a/updateHostsFile.py
+++ b/updateHostsFile.py
@@ -7,26 +7,38 @@
 # as sources into one, unique host file to keep you internet browsing happy.
 
 import os
+import re
 import string
 import sys
 import tempfile
 import urllib2
 
+# Project Settings
 BASEDIR_PATH = os.path.dirname(os.path.realpath(__file__))
 DATA_PATH = BASEDIR_PATH + '/data'
 DATA_FILENAMES = 'hosts'
 UPDATE_URL_FILENAME = 'update.info'
+SOURCES = os.listdir(DATA_PATH)
 
+# Exclusions
+EXCLUSION_PATTERN = '([a-zA-Z\d-]+\.){0,}' #append domain the end
+
+# Common domains to exclude
+COMMON_EXCLUSIONS = ['hulu.com']
+
+# Global vars
+exclusionRegexs = []
 duplicatesRemoved = 0;
-sources = os.listdir(DATA_PATH)
 
 def main():
 	promptForUpdate()
+	promptForExclusions()
 	mergeFile = createInitialFile()
 	finalFile = removeDups(mergeFile)
 	finalizeFile(finalFile)
 	print 'Success! Your shiny new hosts file has been prepared.'
 
+# Prompt the User
 def promptForUpdate():
 	response = query_yes_no("Do you want to update all data sources?")
 	if (response == "yes"):
@@ -34,8 +46,54 @@ def promptForUpdate():
 	else:
 		print 'OK, we\'ll stick with what we\'ve  got locally.'
 
+def promptForExclusions():
+	response = query_yes_no("Do you want to exclude any domains?\n" +
+							"For example, hulu.com video streaming must be able to access " +
+							"its tracking and ad servers in order to play video.")
+	if (response == "yes"):
+		displayExclusionOptions()
+	else:
+		print 'OK, we won\'t exclude any domains.'
+# End Prompt the User
+
+# Exclusion logic
+def displayExclusionOptions():
+	for exclusionOption in COMMON_EXCLUSIONS:
+		response = query_yes_no("Do you want to exclude the domain " + exclusionOption + " ?")
+		if (response == "yes"):
+			excludeDomain(exclusionOption)
+		else:
+			continue
+	response = query_yes_no("Do you want to exclude any other domains?")
+	if (response == "yes"):
+		gatherCustomExclusions()
+
+def gatherCustomExclusions():
+	moreEntries = True;
+	while (moreEntries):
+		domainFromUser = raw_input("Enter the domain you want to exclude (e.g. facebook.com): ")
+		if (isValidDomainFormat(domainFromUser)):
+			excludeDomain(domainFromUser)
+		response = query_yes_no("Do you have more domains you want to enter?")
+        if (response == "no"):
+        	moreEntries = False
+
+def excludeDomain(domain):
+	print 'in exclude domain'
+	exclusionRegexs.append(re.compile(EXCLUSION_PATTERN + domain))
+
+def matchesExclusions(strippedRule):
+	strippedDomain = strippedRule.split()[1]
+	for exclusionRegex in exclusionRegexs:
+		if exclusionRegex.search(strippedDomain):
+			print 'Domain ' + strippedDomain + ' matched exclusions'
+			return True
+	return False
+# End Exclusion Logic
+
+# Update Logic
 def updateAllSources():
-	for source in sources:
+	for source in SOURCES:
 		updateURL = getUpdateURLFromFile(source)
 		if (updateURL == None):
 			continue;
@@ -59,10 +117,12 @@ def getUpdateURLFromFile(source):
 		print 'Warning: Can\'t find the update file for source ' + source
 		print 'Make sure that there\'s a file at ' + pathToUpdateFile
 	return retURL
+# End Update Logic
 
+# File Logic
 def createInitialFile():
 	mergeFile = tempfile.NamedTemporaryFile()
-	for source in sources:
+	for source in SOURCES:
 		curFile = open(DATA_PATH + '/' + source +'/' + DATA_FILENAMES, 'r')
 		mergeFile.write('\n# Begin ' + source + '\n')
 		mergeFile.write(curFile.read())
@@ -77,11 +137,13 @@ def removeDups(mergeFile):
 	rules_seen = set()
 	for line in mergeFile.readlines():
 		if line[0].startswith("#") or line[0] == '\n':
-			finalFile.write(line)
-			continue;
-		strippedRule = stripRule(line)
-		if strippedRule not in rules_seen:
 			finalFile.write(line) #maintain the comments for readability
+			continue
+		strippedRule = stripRule(line) #strip comments
+		if matchesExclusions(strippedRule):
+			continue
+		if strippedRule not in rules_seen:
+			finalFile.write(line)
 			rules_seen.add(strippedRule)
 		else:
 			duplicatesRemoved += 1
@@ -114,16 +176,16 @@ def writeOpeningHeader(finalFile):
 	finalFile.write('# with a dash of crowd sourcing via Github\n#\n')
 	finalFile.write('# Project home page: https://github.com/StevenBlack/hosts\n#\n')
 	finalFile.write('# Current sources:\n')
-	for source in sources:
+	for source in SOURCES:
 		finalFile.write('#    ' + source + '\n')
 	finalFile.write('#\n')
 	finalFile.write('# Take Note:\n')
 	finalFile.write('# Merging these sources produced ' + str(duplicatesRemoved) + ' duplicates\n')
 	finalFile.write('# ===============================================================\n')
 	finalFile.write(fileContents)
+# End File Logic
 
-
-# HELPER FUNCTIONS
+# Helper Functions
 ## {{{ http://code.activestate.com/recipes/577058/ (r2)
 def query_yes_no(question, default="yes"):
     """Ask a yes/no question via raw_input() and return their answer.
@@ -158,6 +220,14 @@ def query_yes_no(question, default="yes"):
                              "(or 'y' or 'n').\n")
 ## end of http://code.activestate.com/recipes/577058/ }}}
 
+def isValidDomainFormat(domain):
+	domainRegex = re.compile("www\d{0,3}[.]|https?")
+	if (domainRegex.match(domain)):
+		print "The domain " + domain + " is not valid. Do not include www.domain.com or http(s)://domain.com. Try again."
+		return False
+	else:
+		return True
+# End Helper Functions
 
 if __name__ == "__main__":
 	main()
\ No newline at end of file