I compiled a list of resources in response to some frequently asked questions on this subreddit.

Edit: Updated with some of the suggestions from the comments. Obviously there are thousands of related websites so a complete list is out of the question, sorry if I missed some of your favorite websites.

League Tables and Statistics:

http://www.whoscored.com/

http://www.soccerway.com/

http://fcstats.com/

http://comparetheleagues.com/

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Live Streams:

http://www.firstrowsports.eu/

http://www.sportlemon.tv/c-1.html

http://www.lshunter.tv/

http://www.wiziwig.tv/competition.php?part=sports&discipline=football

http://www.hahasport.com/c-1.html

http://ilemi.me/

http://www.rojadirecta.me/

Note: For watching streams I recommend using Firefox with Ad-Block Plus if you don't want ads to randomly pop over your video.

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Live Scores:

http://www.livescore.com/

http://www.soccerstand.com/

http://www.flashscore.com/

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Highlights:

http://www.101greatgoals.com/category/goals/

http://www.fasthighlights.com/

http://footyroom.com/

http://www.tvgolo.com/football.php

http://www.footytube.com/

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Match Analysis, News and Write-ups:

http://www.zonalmarking.net/

http://www.theirtactics.com/

http://www.theoffside.com/

http://www.guardian.co.uk/football

http://www.360footballnews.com/

http://www.football365.com/

r/footballtactics

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Transfer Market:

http://www.transfermarkt.co.uk/

http://www.goal.com/en/scores/transfer-zone

http://www.footballtransferleague.co.uk/football_transfers.aspx