I met my wife when I was 34 after a long dry spell - we met through a wildlife forum so i'd totally endorse what the others were saying about shared interests
before that I did 'singles grapevine' for a bit - and I met some nice girls (and so total psycho hosebeasts) but the trouble is that dating sites can be very pressured which isnt great if you dont have the confidence (which i didnt)
so yeah my advice, go out live your life amd join some interest groups - sooner or later you'll meet a nice girl. HTH
edit; and with regard to the age thing dont worry , the constant lament of my single female freinds is that when you get to your late twenties early thirties "all" the nice blokes are taken - so if you're a good guy you ought to come as a pleasant suprise.