Here's my review of your second game. The three main themes:
1) Don't play moves that don't do anything.
2) Don't play moves that allow the opponent to separate your groups without getting separated himself (like move 14).
3) Don't save stones that are not doing anything. If a stone isn't holding onto territory (or influence) or cutting your opponent's groups, it is likely to be a useless stone.
[sgf-full](;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]TM[1500]OT[5x30 byo-yomi]
PW[psk31]PB[Monadology]WR[24k]BR[17k]DT[2010-09-22]PC[The KGS Go Server at
http://www.gokgs.com/]RE[B+Resign]
;B[pd]BL[1496.82]
;W[dp]WL[1495.248]
;B[pp]BL[1487.909]
;W[dd]WL[1488.667]
;B[pj]BL[1482.65]
;W[kp]WL[1469.734]
;B[nq]BL[1463.145]
;W[ck]WL[1459.303]
;B[jd]BL[1457.248]
;W[gc]WL[1455.414]
;B[jj]BL[1451.832]
;W[jf]WL[1433.681]
;B[ie]BL[1426.622]
;W[he]WL[1418.472]C[Forgive me, but this move is horrible.]
;B[if]BL[1422.184]TR[he][ie][if][jf]C[Good move by black. As you can see, white's shape has been ripped apart.]
;W[ig]WL[1415.291]
;B[hf]BL[1399.551]TR[jf][ig]SQ[he]C[By helping the triangled stones you inevitably hurt the squared stone. That's one of the reasons why this shape is so bad.]
;W[jg]WL[1404.611]
;B[hd]BL[1388.525]
;W[ge]WL[1399.793]TR[ge][he]C[These stones are not doing anything, yet the more you save try to save them the heavier they get. It would have been better to abandon your one stone rather than extend here.]
;B[gd]BL[1379.319]
;W[fe]WL[1395.946]TR[gc][fe][ge][he]C[Once again - bad shape.]
;B[gg]BL[1371.903]
;W[fh]WL[1381.56]TR[fe][ge][he][jf][ig][jg][fh]C[This move is also questionable, as it is clear that it leaves many cutting points between your three groups.]
;B[fg]BL[1349.88]
;W[ef]WL[1365.007]
;B[eg]BL[1334.442]TR[ef][fh]C[Again.]
;W[df]WL[1352.876]
;B[dg]BL[1327.24]
;W[bf]WL[1348.182]
;B[gh]BL[1314.58]
;W[fi]WL[1335.503]TR[fh]C[This stone isn't doing anything. It is not worth saving. Just leave it. Black trying to capture it will be too slow.]
;B[gj]BL[1307.022]
;W[fk]WL[1319.352]TR[fh][fi]C[Leaves cutting points, which would be fine except it seems you're trying to hold on to your triangled stones.]
;B[fj]BL[1287.89]
;W[gi]WL[1316.867]
;B[hi]BL[1283.303]
;W[ei]WL[1294.328]TR[fj][fk]C[Now the triangled exchange has once again given you bad shape.]
(;B[hk]BL[1275.851]C[Passive. Rip through his shape. If you kill his four stones, you don't have to worry about this cut at all.]
;W[ij]WL[1283.871]C[Overplay. This will just create more stones that aren't doing anything.]
;B[ik]BL[1261.109]
;W[ii]WL[1235.715]
;B[hh]BL[1249.226]
(;W[ih]WL[1186.161]
;B[ld]BL[1229.286]TR[jf][ig][jg][ih][ii][ij]C[These stones look very weak.]
;W[ic]WL[1124.188]
(;B[id]BL[1225.685]
;W[lf]WL[1100.245]
;B[ne]BL[1190.288]
;W[ki]WL[1050.011]
;B[kj]BL[1180.408]
;W[hn]WL[1040.845]TR[fp][gp][hp][ip][aq][bq][cq][fq][iq][cr][fr][ir][cs][fs][gs][hs][is]C[White tenukied too early. Black should now attack the weak group. Black can still live underneath without too much effort, because white's move is too high.]
;B[gk]BL[1141.184]C[This is more or less a pass.]
;W[ek]WL[1030.212]C[Again, saving a meaningless stone.]
;B[ej]BL[1133.617]TR[fh][ei][fi][gi][ek][fk]
;W[dj]WL[1023.796]
;B[di]BL[1131.752]
;W[ch]WL[984.263]
;B[ci]BL[1114.166]
;W[bh]WL[915.567]
;B[dh]BL[1110.05]C[This is a pass.]
(;W[cg]WL[906.765]C[As is this.]
;B[fm]BL[1103.11]
;W[gl]WL[883.342]
;B[fl]BL[1096.731]
;W[gm]WL[854.28]
;B[dl]BL[1065.399]
;W[dk]WL[835.913]
;B[fn]BL[1050.067]
;W[el]WL[803.216]
;B[em]BL[1045.831]
;W[cm]WL[763.994]
;B[fp]BL[1029.504]
;W[do]WL[723.829]
;B[cl]BL[1011.67]
;W[bl]WL[716.275]
;B[dm]BL[1008.95]
(;W[cn]WL[699.407]
;B[bk]BL[1003.157]C[nanok [13k\]: oops
]
;W[bi]WL[686.611]C[Effectively another pass.]
;B[mj]BL[978.256]
;W[dn]WL[623.085]C[Pass.]
;B[eq]BL[962.857]
;W[dq]WL[612.585]
;B[hq]BL[954.43]TR[jf][lf][ig][jg][ih][ii][ki][ij][gl][gm][hn][kp]C[Now both groups look very weak.]
;W[eo]WL[549.64]C[Does nothing other than allow black to connect.]
;B[fo]BL[950.13]
;W[dr]WL[546.133]
;B[er]BL[942.949]
;W[ds]WL[518.963]C[Too slow. Only worth a few points.]
;B[kq]BL[938.853]C[When attacking a group, don't touch it. Let me demonstrate.]
(;W[jp]WL[490.616]
;B[jq]BL[933.474]
;W[jl]WL[483.077]
;B[jk]BL[925.542]
;W[jc]WL[476.933]C[Tenuking weak groups again.]
;B[kc]BL[915.172]
;W[ke]WL[472.983]
;B[kd]BL[912.424]
;W[kg]WL[469.403]
;B[ji]BL[903.145]
;W[kh]WL[461.662]C[Saving a meaningless stone.]
;B[le]BL[896.484]
;W[lg]WL[456.296]
;B[je]BL[893.569]
;W[nf]WL[426.712]
;B[of]BL[874.049]
(;W[mf]WL[414.321]
;B[mh]BL[844.77]C[nanok [13k\]: i can't see any solutions for w anymore

]
;W[mk]WL[365.752]C[I don't understand.]
;B[nj]BL[829.499]
;W[me]WL[362.96]
;B[nd]BL[825.375]C[kukula [18k\]: perhaps black will accommodate with a few major errors?
]
;W[nh]WL[337.98]C[nanok [13k\]: doesn't look like it. the kill on the k13 group is very deliberate
nanok [13k\]: but we shall see
]
;B[ni]BL[744.287]
;W[nk]WL[324.107]
;B[oh]BL[737.385]
;W[ng]WL[319.818]
;B[og]BL[732.489]
;W[li]WL[312.979]
;B[lj]BL[728.463]
;W[mp]WL[294.885]
(;B[no]BL[718.885]C[Leaves holes.]
;W[nn]WL[285.32]
(;B[mq]BL[704.948]
;W[mi]WL[281.253]
;B[mo]BL[683.248]
;W[lp]WL[277.891]
;B[on]BL[680.16]
;W[ok]WL[265.92]
;B[pk]BL[674.687]
;W[pm]WL[249.833]
;B[om]BL[669.049]
;W[nm]WL[246.94]
;B[ol]BL[657.012]
;W[nl]WL[232.988]
(;B[po]BL[624.481]C[A pass. End of comments.]
;W[md]WL[189.134]
;B[mc]BL[620.914]
;W[oe]WL[184.418]
;B[od]BL[611.343]
;W[jb]WL[175.967]
;B[hc]BL[601.305]
;W[hb]WL[173.719]
;B[fc]BL[595.191]
;W[ec]WL[168.694]
;B[gb]BL[590.716]
;W[fd]WL[165.312]
;B[kb]BL[562.359]
;W[ee]WL[149.221]
;B[eb]BL[554.14]
;W[db]WL[145.978]
;B[da]BL[536.958]
;W[ca]WL[115.5]
;B[ea]BL[509.321]
;W[cb]WL[110.444]
;B[ha]BL[500.062]
;W[fa]WL[90.234]
;B[fb]BL[482.986]
;W[ak]WL[19.404]
;B[cj]BL[479.691]
;W[bj]WL[11.281]
;B[ck]BL[476.884]
;W[aj]WL[8.818]
;B[ln]BL[462.309])
(;B[ss]
;W[oo]C[This doesn't work.]
;B[po]
;W[op]
;B[np]
;W[oq]
;B[or]
;W[pq]
;B[qq]))
(;B[mo]TR[nn][mp]))
(;B[mq])
(;B[np]))
(;W[ng]C[Better shape.]))
(;W[jq]C[White just got stronger. And guess what? Your stone is weak now. Better save it.]
;B[lq]
;W[jp]C[Now, you see how white basically got an extra move to strengthen his own stones, due to the weakness created in yours? If you hadn't touched him, he would have only gotten one additional stone, rather than two.]))
(;W[bk]
;B[cn]
;W[bm]
;B[dn]
;W[bi]))
(;W[aa]
;B[cg]
;W[bg]
;B[cf]
;W[ce]C[Black has nothing.]))
(;B[kh]C[I would attack (maybe even kill) this white group rather than save two measly stones. This is one way (not necessarily the best) to do it.]))
(;W[ji]C[Better connecting shape.]))
(;B[ej]))[/sgf-full]