Here's some commentary, mostly on the opening and early middle game.
(;CA[hz-gb-2312]FF[4]ST[1]AP[glGo:1.4]SZ[19]GM[1]GN[phrax-black]DT[2011-02-08,2011-02-21]
PC[Dragon Go Server: <!-- m --><a class="postlink" href="http://www.dragongoserver.net/">http://www.dragongoserver.net/</a><!-- m -->]
PB[black (black)]BR[11 kyu]PW[phrax (phrax)]WR[10 kyu]KM[2]RE[W+3]MULTIGOGM[1]
;B[pd];W[cq];B[qp];W[dc];B[oq];W[de]LB[qj:A][qf:B][nc:C][jq:D]C[A bit slow, but OK. A, B C and D are all possible, however A and B are probably best.]
;B[dp];W[cp];B[do];W[er]
(;B[jd]C[I think this is a bad move. White should play B.]
(;W[qj]C[Is this a reasonable probe location? In these situations I'm not sure if its better to start at something like r10, r14, or o17.]
;B[cg]C[It's hard to know how to answer this move, but I think a direct counterattack is in order.]
(;W[qf];B[nd]C[I think white should play B instead.]
(;W[hc];B[rd]C[I think it's still better to eliminate the weakness with B.]
(;W[qm];B[qh]
(;W[og]LB[pg:A]C[I think the end result of this sequence is fine for white (yes/no?). Although I do feel like I got into a little trouble and should've approached this better (at this point I don't really like my r10/r14 spacing). Ideas?
This sort of move is almost always bad. Instead white should just ignore, but locally, A would be the move.]
;B[rf];W[qg];B[rg];W[ph];B[qi]
(;W[pj]
(;B[jq];W[cf]LB[ci:A][cj:B]C[Is this attach ok?
It is still better to play A, or possibly B. This helps strengthen black.]
;B[dg];W[dk]C[My goal at this point is to divide and attack one of the left-side groups. Is this reasonable and/or is this the right way to do it?
It is reasonable, but the pincer would have been better.]
;B[cj]
(;W[hp]LB[fp:A]C[Locally A is the move. This is too weak.];B[ck];W[cm];B[dj]
(;W[dl];B[jo]C[This move is very bad. It helps you to capture.];W[hn];B[fj]
(;W[mq]LB[nj:A][np:B]C[Is this ok (position and timing)? After the resulting exchange, I wonder if N4 is better.
Now that you can play elsewhere, you should cover the cut at A. But locally, B is better. See variation.]
;B[no]LB[np:A]C[Again, should be at A.];W[mo]C[I feel like I screwed up something in the upcoming exchange (although I'm not sure what). Although, I did end up with center influence. So I don't know if I did well or I ended up with a ok result by accident.]
;B[mn];W[ln];B[mp];W[lo];B[lp];W[kp];B[kq];W[np];B[lq];W[nn];B[oo];W[mm];B[ko];W[on]
;B[po];W[ld];B[lc];W[mc];B[md];W[kc];B[lb];W[kd];B[mb];W[gf];B[kb];W[jc];B[mf];W[lh]
;B[kf];W[mg];B[nf];W[gl]C[This feels slow, but the aji of his 2 stones in the bottom left concern me. I do offer myself some consoliation that I build more influence in the center (although I don't know if that is correct).]
;B[ed];W[ee]C[At this point I think killing the stone is possible (yes/no?)];B[fd]
;W[ec];B[hd];W[id]C[I changed my strategy to split and attack both. If I can kill, great. If not, I hope to get something about if it (maybe wreck his left-side group).]
;B[he];W[ie];B[hf];W[gg];B[fe];W[eg];B[ef];W[df];B[ff];W[dd];B[je];W[jf];B[ke];W[if]
;B[hg];W[eh];B[bg];W[ei];B[ej];W[gi];B[gh];W[fi];B[hi];W[gj];B[fg];W[jk];B[jh];W[kg]
;B[hj];W[gk];B[jj];W[kk];B[lf];W[fh];B[ge];W[bf];B[bl];W[bm];B[jg];W[gc];B[ig];W[ic]
;B[kh];W[li];B[gq]C[This hurt. Is it reasonable to think these black stones are killable? I assume I didn't do it right, because they lived (well, some did).]
;W[hq];B[hr];W[ir];B[fr];W[iq];B[dr];W[cr];B[eq];W[dq];B[es];W[fp];B[fq];W[hs];B[gp]
;W[go];B[fo];W[eo];B[fn];W[en];B[gs];W[gr];B[dn];W[em];B[hr];W[ep];B[gr]C[The invasion didn't kill all of my territory in the bottom left, but I feel like it all should've died, and I couldn't quite kill it.* End of Comments *]
;W[bh];B[ch];W[ci];B[bi];W[di];B[ah];W[cl];B[bk];W[qe];B[re];W[qd];B[qc];W[ls];B[lr]
;W[ks];B[js];W[jr];B[ms];W[is];B[nq];W[rn];B[rj];W[rk];B[ri];W[pi];B[ro];W[fc];B[ha]
;W[jb];B[ja];W[gb];B[ga];W[fa];B[ia];W[lg];B[ik];W[jm];B[kj];W[lj];B[ng];W[nh];B[af]
;W[ae];B[ag];W[bd];B[io];W[ho];B[im];W[hm];B[jl];W[kl];B[il];W[cs];B[ds];W[kn];B[jn]
;W[km];B[pn];W[pm];B[qn];W[sm];B[pe];W[of];B[pf];W[pg];B[oe];W[le];B[me];W[ki];B[ji]
;W[ip];B[jp];W[am];B[al];W[sh];B[rh];W[sk];B[sj];W[sn];B[so];W[kr];B[fk];W[fl];B[ek]
;W[el];B[hk];W[hl];B[ka];W[ib];TB[qb][qa][ps][qo][qq][qs][qr][pr][pq][os][or][op]
[pa][pb][pp][pc][ra][rb][sg][sf][se][si][sq][ss][sr][sd][sc][rq][rp][rc][rr][rs]
[sb][sa][od][sp][er][bj][fs][gf][hh][gg][ak][aj][sh][oc][mc][mq][ai][np][ih][bh]
[nr][nc][ns][oa][ob][ii][nb][ne][la][na][ij][ma][kp][mr]TW[mi][mh][mj][ml][lm][mn]
[mk][eb][fm][fb][ni][gm][gn][lk][js][ll][rm][qk][pl][pk][ql][rl][sl][ea][om][ol]
[nm][nl][nk][oh][oi][ok][oj][nj][bn][ap][ao][an][aq][ar][ba][as][ad][ac][fn][do]
[fo][dp][dn][ab][aa][bb][bc][ce][cd][cc][cn][co][db][da][cb][ca][bo][be][bp][bq]
[bs][br][dm]C[White: 69 territories 8 prisoners 2.0 komi = 79Black: 66 territories 10 prisoners = 76Result: W 3]
N[RESULT])
(;W[np]
(;B[op];W[nn])
(;B[nq];W[mq];B[mp];W[kp];B[kq];W[lp];B[mo];W[lq];B[jp];W[kn])))
(;W[em]C[Better to ignore now and lay something like this.]))
(;W[ck]C[White must play here.]))
(;B[pi];W[oi];B[oj]C[This is very severe.]))
(;W[pi];B[rj];W[rk];B[ri];W[qk]C[Instead, white should play like this.]))
(;W[pg];B[ph];W[ng];B[oh];W[mf];B[oj]C[Even this, which is better, does nothing but weaken white.]))
(;W[ph]))
(;W[rd];B[qc];W[ph];B[gc]C[This way you would eliminate your weakness.]))
(;W[ci];B[be];W[cd];B[eg];W[cl];B[gp];W[ei];B[gg];W[hc]C[Perhaps something like this. It feels awkward, but I think this is the price white pays for not going after black in the lower right earlier.]))
(;W[fp];B[pj]LB[fp:A]C[Even though it allows Black to make a large framework, I think white A is the vital point.]))
(;B[gp];W[bn];B[dl];W[nc]C[This is good for white. If Black wants to prevent this, he should play at the top before the shoulder hit.]))