strengthening abs

[dukemushroom]

well i've got my cardio and my lifting workouts settled, now i've gotta figure out what to do about my abs and stretching. I'm not worried about whether i have a six pack showing or not, i'm not saying it wouldn't be cool, i just want to have strong abs (since they are the core and have about everything to do with everything) but i don't know exactly what exercises to do for them, like i said before, i just want really strong abs. the only exercise i've been doing lately for abs is where i sit at the edge of a table and pull my feet in and crunch up only using my hands to balance doing 4 sets of 25...this gives a good burn and i can feel it a little in my obliques. I also need advice on stretching...i only do a basic stretch before i run but i'd really like to be able to come close to doing splits and such. so i'll take any advice anyone wants to give...thanks.

[EmptyneSs]

for abs u can do tons of things, check out this page
http://www.netfit.co.uk/abdominals-web-site.htm