Reading back through that I think I have been fuck all help to you Kiko, so let's have another go and I'll try not to get sidetracked
The 1st thing I look at are the stats and by stats I do not mean a simple figure for the average that has been calculated simply by dividing the total amount of corners by the number of games played

This will tell you nothing at all and if you base your bets on these figures you will lose money in the long term - that approach was probably alright 3 or 4 years ago, but not anymore. At the very least you must separate the figures out into home and away because some teams are just totally different home & away - this year sheff utd had around 80% of their home games have over 11 corners, but away from home 75% of their games had under 11; aston villa were around 70% under 11 at home, but about 60% over 11 away.
Really you want to look at figure broken down into for and against, because it may be no use betting on over 11 corners in a match between 2 teams whose high corner counts are mainly because they concede shed-loads, but win very few.
I like to actually look at the figures for each match individually, because freak matches do occur which can distort the average figues and it also should be remembered that just because a team was involved in many low corner matches at the start of the season it doesn't mean that they still are playing in such a way. So, recent figures should be considered more important than those from a few months ago.
What I tend to find is that each season there are usually several teams who can be relied upon to consistently be 'over' or 'under' teams - either at home or away or sometimes both. Then there will be the majority of teams who have no real pattern and can only be relied upon to be inconsisent and just screw you about. Basically, it just a matter of being paitient and waiting till you get a match-up between 2 complimentary teams -
for example, as noted earlier sheff utd were an over team at home and this was mainly due to them winning many corners as they were only an average conceder. So, you want them to be playing a team involved in many over games away from home, which, from last season, could be watford, portsmouth or reading. Reading would have been my 1st choice of these because not only did they concede many corners away from home they, unlike the other 2, were very good corner winners on their travels as well.
As in my normal betting team news is not of great interest to me, but there are some teams for whom certain players are very important in terms of corners or bookings. Peter crouch at liverpool is one of the best examples - when he is playing they win far, far more corners. Jermaine pennant is also a big corner winner, both for liverpool and a couple of seasons ago for birmingham.
In the bookings markets certain players can be even more important deciders as to whether to bet or not. Last season fulham, for example, were quite low card earners and so were worth looking at. By halfway through the season it became clear that if either helguson or queudrue wasn't playing for them then they were an even better bet as they were accounting for a great portion of their bookings.
The most important consideration for corners bet in particular is also the hardest to decide with any certainty and that is how the match is going to play out. Nothing kills a potential overs corner bet like a goal in the 1st 10 minutes for the favoured home team - except if they get a 2nd and then you can just forget about it. Likewise, your nice under 11 corners bet is likely to be in great danger if the away underdog scores a very early goal. Looking at this season is a good example of just how important the 'match script' is.
Man Utd look like a team that are going to win many corners, with their 4-4-2 formation and 2 great wingers; arsenal are built quite differently, they have no real wingers and try and play straight through the middle of teams most of the time, so they are not going to win as many corners. Away from home this is true as man utd won more corners than any other team, but at home arsenal actually won around 30% more corners than man utd did. The reason is that while man utd generally were not pushed not hard at home very often, whilst arsenal, especially at the start of the season were constantly chasing the game and racking up some huge corner figures.
The reason that I think you have to now think in as complex terms as this is that the bookies have now tightened up their act. Up until maybe 2 years ago the corners were very fixed in their structure - all uk leagues were under/over 11 corners and all european leagues were under/over 10 corners. The only thing that would vary would be the price, but that would rarely go below 1.9 because there was not much money going down.
Now these markets have gotten more popular the bookies have responded by dropping down to under/over 10 on some of the uk games and even pushing it up to under/over 12. The same has also happened in europe with under/over 9 now not being uncommon. Plus some of the bookies are so quick to cut prices down to as low as 1.72. This has removed most of the margin for error now and you must be selective in your betting - gone are the days of being able to bet on more than half of the Premiership games in a week and win them all.
It's not all bad news, though, because this increased interest has led to new markets being offered - 1st half corners, where under 5 seems to be the industry standard which does provide a little margin of error; corner supremacy bets, which can be very profitable if you can find the right match-up between teams and probable match script; goals x corners - I think this is just a 'fluff' market, but you never know
Plus, on the really big TV games all the bookies now seem to want a share of the corner-pie and the ones who don't normally touch this market often make errors - ..cough!!..BWIN..cough!!
Actually, this season the German league provided some of the best bets - teams to keep an eye on are schalke & werder bremen for over 10 corners at home - especially schalke who concede almost as many as they win.
For under 10 corners at home look no further than arminia bielefeld who only won an average of just over 4 corners per game and were very tight defensively as well - at least in terms of corners.
Then there is also the new offsides market that
Skybet have experimented with at the end of this season - maybe that's where the next lot of money is to be made
